Public Circle Members

Koen De Paus

"It may be that our role on this planet is not to ...

Paul Scott Anderson

freelance space writer

Praveen Kulkarni

10% human 90% bacteria

Omar Loisel

Amateur astronomy, cosmology, astrophysics and ...

Monica Salcedo (Monicks)

Wayne Stratz

Joseph Lee

A scientist who happens to dabble in technology, ...

Peter Terren

AKA "Dr Electric" - high voltage enthusiast and ...

W Younes

Derek Colanduno

Jon Hiller

Electron Microscopist, Materials Scientist, ...

Rob Walch

Host of Today in iOS (iPhone) and podCast411 ...

Stuart Watson

Science and skepticism

David Pearce

Jay Cross

One of a long line of Renaissance Men

Tom Lai

gaytheist

Magdalena Plewińska

silkenpaw

Lee Scott Price

Paul T.

Founder of CosmoBC.com

Emily Lakdawalla

Senior Editor and Planetary Evangelist for The ...

Chad Orzel

Philip Atherton

Jürgen Hubert

Fraunhofer IWES

Daniel Lemire

Computer Scientist and Open Scholar

Camilla Corona SDO

I am Camilla Corona SDO with NASA's Solar ...

Leo Lincourt

Ngọc Thúy Trần

Kimberly Chapman

Official Sucromancer of the Realm

Sadie Crabtree

Communications strategist and community organizer.

Paul Gilster

Writer/Editor Centauri Dreams ...

Donna Mugavero

Sheer Brick Studio, principal. Geologic Universe, ...

rasha kamel

Chris Robinson

Assistant Professor, Psychology

fan tai

Learning to empty my cup

E. Zaiser

Easily excited by science, human behavior, and ...

Rich Pollett

Derya Unutmaz

Amy Shira Teitel

Donna Murdoch

DONNA MURDOCH

Stefan Geißler

Nicht zu wissen, was vor der eigenen Geburt ...

Robert LAMAR

"The power of thought is the MAGIC of the MIND." ...

Raymund Kho K.D.

currently engaged in certain matter which does ...

Henry Reich

Minutephysics: cool physics and other sweet ...

Brad Leclerc

Professional Geek.

Trev Warth

I have techno JOY!!!! [Eddie Izzard reference]

Bug G. Membracid

Bugs. Ranting. Nerdery.

Paul Sutherland

Earth

Nathalie Graafland

I'm a Dutch photographer and visual artist, ...

Jesus Seañez

Life Is a Full Time Occupation

Lee Worden

Luis Carvalho

a.k.a FatGiant

Vincent Knight

I'm a Third Culture Kid currently working as a ...

Adam Schwartzberg

Karin Konzelmann

Filippo Salustri

Everything matters, all the time.

Mary Mactavish

I'm middle-aged and happy.

Ricardo Francisco Prochnow

Philip Plait (The Bad Astronomer)

I write about the Universe.

Eoghann Irving

Curmudgeonly Since 1972

Dave Cole

A person of little importance, trying to make ...

Risto Linturi

Futurist, New Growth Platforms

Aung Thiha

Biomedical Engineer, Researcher, Transhumanist

Jennifer Ouellette

Science writer, cocktail physics

Ciro Villa

Testing this Universe.

mary Zeman

My work is bioinformatics and my obsessions are ...

David Arrant

"It is possible to commit no errors and still ...

Alberto Conti

JWST Innovation Scientist

Greg Gbur

Blogger of optics, history of science, and weird ...

Alasdair Allan

Yet another hacker, pretending to be an ...

NASA

Explore the universe and discover our home planet ...

Marianna Limas

Undergraduate Researcher at National Institute ...

Dustin Wyatt

...nothing occurs contrary to nature except the ...

John Baez

I'm trying to get mathematicians and physicists ...

Andreas Schepers

it's rocket science, baby!

Anja Austermann

software engineer, robot whisperer and legal ...

Nathaniel Mosher

I live to improve myself, help others, and change ...

Gail Barnes

Sustainability / innovation / technology ...

Mario Antonio

Joerg Rings

Cristian Lorenzutti

Science and Technology!

Jacob McLaughlin

Molecular Biologist

Alexandre Abdoulaev

I'm a guy who does things.

Zaine Ridling

Linux captive

SkeletalDrawing.com

Dinosaurs, Science, & Anatomy

Mary Mangan

Singularity Utopia

Accelerating Explosive Intelligence

Lil Banchik

Jyoti Dahiya

"Space, the final front ear!"

Pratik Mukherjee

Neuroradiologist & Neuroscientist

Carol Pietrantoni

Emecee Ellison

The Meridiani Journal

a chronicle of planetary exploration

Tavi Greiner

Astronomy, Nature, Photography

Fraser Cain

Publisher of Universe Today, a site about space ...

Daniel Koeker

Writer, editor, gamer, photographer, lover of ...

Dan Ariely

Jamie Rich

Loving Life, laughing hard, playing well with ...

Dennis Rünger

"With poor ventilation comes great ...

Stig Carlsson

I Eat Cannibals.

David Hess

Troublemaker and creator of tasty treats

Mitchel Rodwell

Science, morality, activism, and a learning curve ...

Sarah Kavassalis

Hypersurface dweller.

Brian Spencer St. John

Geeky Designer

Dirk Talamasca

Ireland on Google+ - Dirk Talamasca

Mark Changizi

Cognitive scientist at 2AI, and author of THE ...

Ann Marie Patterson

Mouse Comma The

Michele Banks

Maker of science-y art. Big Reader.

Jennifer Barr

Cisco CSR Social Media Marketing Manager. ...

Jennifer Williams

Tiny, mysterious, and powerful: Geeky-Sexy ...

Tommy Leung

Parasitologist, Evolutionary Biologist, ...

Michael Knudsen

May contain traces of nuts...

Ray Sanders

Bringing space back down to Earth!

Kylie Sturgess

João Figueiredo

I talk about the things I love, because when ...

Margaret Morgan

Plant geek and word wrangler.

Cory Albrecht

A boring computer geek

Joanne Manaster

Science awesomer

Glendon Mellow

Art in Awe of Science. Testing the hypothesis ...

Nicole Swimley

Artist. Gamer. Nerd

Jason Goldman

Scientist by day, science writer by night. I ...

Alan Boyle

Allison Sekuler

+1s science (esp vision & neuroscience), science ...

Mike Salway

Passionate about Astronomy, Photography and ...

Jonathan Langdale

I have approximate answers and possible beliefs.

Axel Kratel

Gardener, Physicist, HTML5/Web 3.0/Video Software ...

Steven Benjamins

David Dobbs

I write on science and other forms of culture for ...

Robert Blaskiewicz

My amp is louder than yours.

K.O. Myers

I'm currently studying for the Iowa bar exam and ...

Anthony Whelan

Sydney, Australia

Maki Naro

I write and draw comics about science.

Adam Knapp

Mathematician

Jonathon Richter

Ali Marie

Museum geek, paleontologist-in-training, and teen ...

Lucian Randolph

If the job is impossible, call me.

David Rickard

Tom Houslay

I mostly think about insect sex... mostly.

Jesse Galef

Miriam Goldstein

Marine biologist and science blogger

Anne Brogdon

Marc Steinberg

Tobacco dependence researcher. Clinical ...

Joseph S

Writer, Christian, geek, philosophunculist, ...

Christa Laser

Even-Headed, Warm-Hearted IP Litigator

Alexander Knoll

Jonie S.John

Archaeologist

Tara C. Smith

Brad Trnavsky

I am a doctoral researcher writing a disertation ...

Michael Hoffman

Brian Rinehart

Tech, Gadgets, Science, Geekiness, it's all good.

Dan Frank

Alexis C. Madrigal

I write about technologies and other humanmade ...

Fuzz Aldrin

Scientia quod Pacis - Knowledge and Peace

Bob Novella

Sean Carroll

Physicist at Caltech. Master of time and space.

Ryan Anderson

I shoot rocks with lasers and look for places to ...

Gustaf Rydevik

Bente Lilja Bye

BLB makes Climate & Classical and other cool R&D ...

Matt Dillahunty

Raina R

Jeremy Yoder

Minneapolis-based evolutionary biologist, runner, ...

Roland Broers

Bookcase designer

Marin Treselj

Astrophysicist, mountain biker and a general ...

Derek Bartholomaus

TV Post Guy, Part-Time Political Blogger, ...

Teague O'Mara

Neptune

Stephanie Zvan

Writer, blogger, geek, and skeptic. Sometimes ...

Josh Nunn

Larian LeQuella

Just a guy on the web... ...

Jason Beineke

YA Fantasy author, reader, dreamer, coffee ...

Clement Mesnier

Paris urban photographer, Crime fiction critic, ...

Allison Weis

Matthew Baggott

PhD neuroscientist, data scientist -- seeking SF ...

Andrew David Thaler

Deep-sea ecology, population genetics, ...

Terence Tao

Jeffrey Simpson

Hat connoisseur. Astronomer. Left-wing ...

Charles Carrigan

Husband, Father, Geoscientist, Educator

John Tuffs

I'm not just a teacher, I facilitate Learning. ...

Finn Arne Jørgensen

Historian of technology and environment

Nick Bradbeer

Naval architect

Kristina Feye

Colin Clement

Milky Way

Matthew Inman

The Oatmeal

Justin Erickson

Betsy McCall

mathematician, linguist, astronomer, writer, ...

Tom Quinn

Jeff Gralnick

Callisto

Carin Bondar

Biologist with a Twist

Maryn McKenna

Has been immunized against bioweapons that don't ...

Peter Lipson

Husband, daddy, doctor, sometimes writer

Brent Newhall

21st Century Renaissance Man

Benjamin Radford

Writer, investigator, board game designer, ...

Bill MacIntosh

PI guy waiting on the Singularity

Nick Rolynd

Sci-fi Novelist. Amateur Poet. That is all.

Amanda Bowersox

Quirky, geeky, with a little bit of cute thrown ...

Dimitrios Diamantaras

Economic theorist, lover of song and opera, web ...

Buddhini Samarasinghe

Molecular Biologist

Cytia Beata

Sci&Tech | Astrophys | Mathem/Comput&Theoret Phys ...

Spencer Hamblen

Craig Canapari

John Cmar

William Tatum

Its not a race, you are only in competition with ...

Pluto

Darnell Clayton

...because in Cyberspace no one can hear you ...

Marco Iacoboni

Neuroscientist; UCLA Professor; Author, Mirroring ...

Cris Smith

Just another monkey in shoes

Kathrine Rive

S.J. Elliott

Bioinorganic gadabout and protein ...

yannis guerra

Brief description of me: One head, two arms, two ...

Jason McGibbon

Darya Pino Rose

Author of Foodist & creator of Summer Tomato | ...

michael interbartolo

Rocket Scientist by Day, GoogleTV Ambassador by ...

Evan Bernstein

Scott Gavura

Philip Moyer

Dad, sailor, shooter, photographer, and ...

David Parmet

Space, photography and ham radio geek.

Terry McGlynn

tropical biologist, blogger, entomologist, ...

Doug Burke

An astronomer who spends way too much time on the ...

Lynda Giddens

Trying to be tolerant in a world full of haters.

Bokan Chen

Artur Popławski

Anna Bohlinger

A little of this and a little of that.

Mark Stanton

Robert Simpson

I work at Oxford University for the Zooniverse ...

Joshua Patras

Manfred Jung

Julian Wills

Student. Aspiring Professor. Lover of Learning.

Jessica Morrison

Jote Bhathal

Michael Muracco

Freelance Web Designer and PHP Programmer and ...

Ian Rowan

Beth Katz

Computer scientist and scout leader in Lancaster ...

Rich Thoma

"Rich Thoma" "Boundless Space" Producer: ...

Dave Rintoul

Biology professor at Kansas State University

Sara E. Mayhew

Mangaka, TED Fellow, writer, illustrator.

Dean Roskell

Chris McLemore

What's crackalackin? I'm sans camera at the ...

Greg Norcie

Studying the intersection of usability, security, ...

Erin Babinsky

Patrick Murphy

John Kubie

Neuroscience, Education, 99%

Daniel Sims

I'm a college student who loves space, like space ...

Derek Dunfield

Neuroscientist / Behavioral Economist in the ...

Alice Leung

Head Teacher Science at NSW DEC. Technology ...

Shannon Becker

I love science.

Jonathan Dursi

Art Markman

Cognitive Scientist, Author, and Blogger

Jamila Jamison Sinlao

Ian Holmes

Computational Biologist, Student and Professor, ...

Julia Galef

finding my way out of the flybottle

Martin Singh-Blom

"Thirty-three reasons to jive and not a single ...

Beth Beck

Life is never about the destination. The journey ...

Jorma Koivistoinen

Greyish eyes and a bunch of hair (usually)

finch wench

avian materials scientist and cosmo-quail ...

Eric Schmidt

Brett Szmajda

Advocating science, skepticism, and cool gadgets.

dan drai

Rebecca Watson

Jeremy Swan

I'm a big nerd for biomedical graphics, ...

Jaap Timmer

Jordan Ellenberg

Open Science Federation

to open science

Ross Mounce

Don't call it the ball thing. Call it 'Pure Being'

brendan o'brien

Blake Smith

Alex Wild

Entomologist & Photographer

Trevor Thomas

Stefan Mititelu

Network and Security Director - with interest in ...

Ulf Andersson

Illustrator from Sweden. Also known as ...

Laintal Sibornal

Gregory Merlo

Grug in a rug

Khan Academy

A free world-class education for anyone anywhere

Astrid Lydia Johannsen

I draw comics and illustrations. Freelancer. ...

James Douglas

Christopher Graffeo

NYU School of Medicine, Class of 2014

Robynn McCarthy

What we think we know, really might not be so.

Matthew Kozachek

Halley's Comet

Eric McGeehan

Rhythm is a dancer, and a very hard word to spell.

Mark Marley

Ken Powers

Watercolor artist from Tacoma, Washington ...

Attila Kovacs

Erin Kane

Primatology Graduate Student

Sheril Kirshenbaum

Author, Lecturer, Journalist

Holly Tucker

Vanderbilt U (@history_geek)

Bill Trumpler

Monica Tomaszewski

jaba tkemaladze

intent

Joran Bleeker

My life is pretty awesome!

Randall Munroe

This account is inactive.

Michaele Kashgarian

think beyond the sink

Pamela Gay

Spreading astronomy one sidereal day at a time.

Andres Caicedo

Edward Ellegood

Kristi Lewton

Biological & evolutionary anthropologist

Trent Reznor

Chandran Seshagiri

Christian Walters

Catrina Taylor

Mom first, Freelance Content Provider, Geek ...

Eric Martindale

Adventurer, Problem Solver, Engineer. ENTP.

Jan Tiedemann

Patokai Xp

Tim Farley

Software guy, writer & skeptic who created ...

Steven Novella

Missy Feigum

I love ponies and bees and painting cuddly mutant ...

Djordje Jeremic

Shami Chatterjee

Astronomer, currently at Cornell University.

Jeri Ryan

Adrian Bobb

I make it easier for people to not only believe ...

Mike Bergin

Educational Entrepreneur - Nature Publisher - Bon ...

Amanda Stiles

Margareth Osju

illustrator, painter, poet, photoartist, ...

Jeffrey Flores

Chris Mooney

brian wang

Bruce Jensen

Anna Goldstein

Compulsive organizer. Easily amused and capable ...

Ali Hamze

Find the others.

Mo Costandi

Neuroscientist turned science writer

Larry Sessions

Astronomy educator, sometime writer, dog person, ...

Anna Talman

Brian Grefenstette

Steve Braun

photography artist and designer

Christopher Hutson

David Bradley

Freelance science journalist Sciencebase, ...

Sean Hood

Sean Hood: Screenwriter, Filmmaker, Transmedia, ...

James Odell

derek williamson

I talk science - currently diseases

Adam Fields

Jani Kotakoski

Scientist (materials physics), atheist, skeptic, ...

Steve Crawford

David Brin

Futurist, Science Fiction Author, Scientist. ...

Jon Wilkins

Ethan Watrall

Jeanne Garbarino

Momintisticator

Jyllian Kemsley

Ed Yong

Science writer, geek, husband

Jeremy Friedberg

Peter Oxley

David Winter

Emily Finke

I'm a museum girl, educator, science geek and ...

James Beck

Elizabeth Sears

Lab Goddess

Gail Rosen

Uwe Maurer

Ilija Brunck

Virgo Tex

Jason Major

Space Blogger

Tim Lambert

Scott Sigler

Fiction author and psychotherapist to antagonists ...

Nicole Gugliucci

Old Profile - Closing soon

Christopher Chizinski

Postdoctoral research associate, ecologist, R ...

Eric Patridge

Martian Soil

All the fresh dirt on the planet Mars.

Optical Illusions

daily optical illusion posts

Nam Tran

Nykki B

Family doctor, mother, writer, gamer, geek. A ...

David Kroll

the pseudonym of scientist, professor, and ...

Mark Hahnel

Stem Cell Biologist and Open Scientist

Roger Burgess

A Godless Liberal and Avid Old School Gamer in ...

Denise Hills

NJ native, living in Alabama, Hawaiian girl at ...

Deborah Hogg

Sam Harris

Author, Neuroscientist, CEO of Project Reason

Evo Terra

Publishing. Science. Craft Beer. Not necessarily ...

Philip Newell

Technology business analysis, Nature, ...

Elyse Anders

I'm a bad ass mofo. Recognize.

Saturn

Dana Hunter

Trista Robichaud

Scientist. Biochemist. Jobseeker. Science ...

Dave Tsang

Claire Griffin

Jeramia Ory

Biochemist. Geek. Dad.

Maitri Erwin

Waqas Awan

Abby Noyce

Cognitive neuroscientist, knitter, and conrunner.

Linda King

John Manuel

Physics, space, and now... information.

GeekDad

Geeks Parenting Technology Culture Toys Games ...

Katy Chalmers

Science is beautiful!

Paul Walde

intermedia artist & curator

Cecilia C. Morgan

Ni lo intento, este espacio no me alcanza.

Universe Today

Space and astronomy news since 1999!

Jan Michael Alonzo

Curiouser and curiouser

Chris Lintott

Astronomer, Zookeeper and Writer

David Tana

Lorna Quandt

Sam Webb

Scrivener, hot chocolate, a d*mnit doll, and ...

Mike Stern

Richard Saunders

The Skeptical Judge on TV's "The One"

Adam Marshall

Joerg Heber

Carolyn Collins Petersen

We are all in the gutter, but some of us are ...

Mike Meraz

Podcaster, Educator, Geek and Dad

Alejandro Montenegro-Montero

Molecular Biologist

Eric Michael Johnson

Science writer, academic, primate

Jacek Novak

Rhett Allain

I once gave up coffee. Sadly, I realized it was ...

Dorey Reashore

knitter, quilter, Browncoat, Whovian, Hugo Awards ...

Deborah Byrd

Editor-in-chief at EarthSky.org

Linsay Blondeau

Artist, illustrator, occasional writer of ...

Johnathan Lyon

Jupiter

Davis Ray Sickmon, Jr

Author, iPhone Developer, Not voted most ...

Rachael Dunlop

Ben Zvan

My opinions are my own.

Emily Perkins-Harbin

Aatish Bhatia

Barbara K Iverson

Digital doyenne/faculty @ Columbia College ...

Mieke Roth

Laurence Wilse-Samson

Chanda Prescod-Weinstein

physicist

Ingrid Macindoe

Michael Koppelman

The one and only me.

Agata Mrva-Montoya

Editor, archaeologist and a bookworm

Ken Kleinman

Jonah Duckles

Maribeth Back

Shannon Moore

Self-employed web geek; Space Tweep; NASATweetup ...

Jessica Palmer

James Forester

Europa

Bora Zivkovic

Michael Flanik

Geologist, Husband, Skeptic

Klaus Seiersen

Medical physicist, blogger and science ...

Eric Heupel

Stephen Urquhart

Paul Baer

Tammy Holloway

"Writing a novel is like driving a car at night. ...

Cameron Neylon

Billiam James

Matthew Hartings

Dad of 3, Husband of 1, Assistant Professor of ...

Sarah Snell-Pym

I am the scientific artist or artistic scientist ...

Robert Bevins

President of Kentuckians for Science Education. ...

Mars

Jason B

Uranus

Brad Goodspeed

Brian Malow

science comedian

Edward La

Tullio DeSantis

Art. Mind. Heart.Technology.

Lee Hulse-Smith

Jonathan Eisen

Michael Tobis

sustainability nerd, neo-Texan, internet addict.

Magdeline Lum (ScientistMags)

Chemist, Metallurgist, Photographer, Science ...

J. R. Boedeker

Robert S.

Joshua Shapiro

CP BREST van KEMPEN

Nature artist and failed field biologist.

Allen Knutson

Juggler, math professor, father of two (in that ...

Ned Potter

Nick Howes

@nickastronomer on Twitter - Equipment ...

Tim Young

Astronomer, Dungeon Master, and all round Geek.

Mickey Atwal

Theoretical Physicist turned Quantitative ...

Jay Novella

Paul Hurtado

Mathematical biologist, birder, outdoor ...

Bob Calder

Internet and Society. Oh yeah, and kids. (RSS in ...

M F Schreiber

is like: Google τ = Google 2π

Jane Shevtsov

Nina Christina Berner

let's all meet up in the year 2000

Jeff Shaumeyer

Martin Rundkvist

Archaeologist, journal editor, skeptic, blogger

Jason Charvill

Teacher, curriculum innovator, computer & TV ...

Abdelaziz Elmoudden

Cindy Londeore

Erik Westin

Nic Lucas

Online Education & Publishing, Digital Marketing ...

Charley Parker

Author of Lines and Colors art blog

Kate Ihle

Fouad Rizk

Morgan Jackson

Entomologist, photographer, blogger and ...

Leonardo de Oliveira Martins

Wandering around the boundaries of my own ...

Dave Cardin

Espen Helgesen

Anthropologist and teacher

Al Stefanelli

Retired (Get off my lawn)

Victor Harris

Delivery boy by day, cheesecake baker by night ...

Brad Snowder

Hi. My name is Brad and I'm an astroholic. Carpe ...

Slava Nikitin

Iain Macadair

Advocate for Children

Solar System

Alun Salt

2 jobs. 50% Annals of Botany, 50% UNESCO AWHI.

Alex McEllistrem Evenson

Shiloh Madsen

If homeopathy is real, then dumping Osama bin ...

Justin Kiggins

brains / beer / bicycling / computational ...

Anika Jain

Shara Yurkiewicz

http://blogs.plos.org/thismayhurtabit/

Tracy King

I love the smell of facepalm in the morning

Ed Elliott

Thomas Tucker

Head Wordsmith, Sanity Limited

Rachel M. Bray

Jacquelyn Gill

Postdoc, paleoecologist, feminist, crafter, ...

Bradley Voytek

Neuroscience PhD at UCSF & Uber. Bigdata, ...

Meg Fynes

radiologist.traveler.mom, and luckiest woman on ...

Jennifer McCreight

Lauchlin MacGregor

Just Another Day in Paradise.

Phil Mershon

Writer, researcher, sillyboy, happy lad and ...

Rapid Eye

Runs with Scissors

Thomas Barr

A harbinger of technology actively negotiating ...

Simon O'Toole

I'm an astronomer working at the Australian ...