Sara Sheikh

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5 amazing things that happen to your body in space

The former Army Air Corps officer has spent a month in space, after blasting off on a Russian Soyuz rocket to the International Space Station on December 15 last year, but the spacewalk will doubtless be his most gruelling test.<p>But what exactly will he be going through, during his remarkable spell …

Space Science

NASA’s Fermi Satellite Completes Map Of The Sky; Finds Mysterious, Unknown Monster

The first ultra high-energy map of the Universe is complete after six years. And there’s a surprise inside.<p><i>“I happen to have discovered a direct</i> …

Scientists just saw light coming from around a black hole for the first time

<i>Editor’s note: An earlier version of this article incorrectly described the light as emanating from within a black hole, rather than beside it.</i> …

Black Holes

Space Pictures From 1895 Found in a Basement

The 19th century glass plates of telescope images were found in the basement of the University of Copenhagen's Niels Bohr Institute.<p>A retired Danish astronomer recently stumbled upon a treasure trove of astronomical observations from the late 19th century. The oldest images, taken from the …

NASA Needs Lander To Find Life On Ceres

Ceres — the dwarf planet that has kept the world on tenterhooks with each new image from NASA’s Dawn spacecraft — is still an odds-on favorite to harbor past or even present microbial life, says the mission’s principle investigator.<p>The mysterious bright spots in its Occator crater, however, are now …

Astronomy

Crash Course Astronomy Episode 43: Dark energy.

One of my favorite things to do as a science communicator is melt peoples’ brains*. There isn’t a better playing field for that than cosmology, the …

Dark Matter

Best space photographs of 2015

Astronomy

How do we "see" dark matter?

Every now and again, you'll read a science story claiming the "best picture of dark matter" ever. If it's so dark, how can you see it? In this week's …

Not Your Father's Asteroid

On the left is a radar image of asteroid 1998 WT24 taken in December 2001 by scientists using NASA's the 230-foot (70-meter) DSS-14 antenna at …

Astronomy

ESA makes an easy-to-view archive of new Rosetta comet images

The Rosetta probe has finally beamed back the photos (among other data) it took of 67P/Churyumov-Gerasimenko, as it flew within just 19 miles of the comet's surface. They were captured by the probe's main imaging system called OSIRIS, which is comprised of one narrow-angle and one wide-angle …

Are we surrounded by Dyson Spheres?

In this week's "Ask a Physicist," we'll explore an awesome mash-up of exoplanets, supercivilizations, and dark matter, and try to figure out whether …

Shields Up! How the Earth Got a Force Field

<i>Paul Sutter is a visiting scholar at the Ohio State University's Center for Cosmology and Astro-Particle Physics (CCAPP). Sutter is also host of the</i> …

Magnetism

Golden Retriever Adopts Kitten Rejected by Mother, Proving Love Knows No Species (PHOTOS) - One Green Planet

For some reason, humans seem to think that we’re the only species capable of having compassion for others. But, time and time again, we’ve seen …

Winners of the Comedy Wildlife Photography Awards Showcase Animals at Their Funniest

The newly-launched Comedy Wildlife Photography Awards hopes that you'll chuckle when you see one of their images. You aren't laughing at them, rather, but with them–these lighthearted photos are meant to be hilarious. The unusual competition combines funny portraits of animals with technical …

Nature Photography

The Moon’s Reflection Transforms this Awkward Spacecraft into Lovely Art

<b>December 14, 1972</b>: Admire a fleeting moment of scientific poetry: sunlight reflecting off a dusty ball of rock, the moonlight in turn reflecting off …

"Urban Wildlife" Story and Pictures

Story ?<p>Urban Wildlife<p>Published <b>Dec 11, 2015</b> | View the Assignment | Features Photos From <b>26 Contributors</b><p><b>27 photos</b> selected by<p><i>Photographer & National Geographic Explorer</i><p>View Slideshow<p>Well, this was exciting and really tough. Curating the Urban Wildlife assignment was as challenging for me as …