Astronomy

The remnants of a supernova.

Radioactive Isotopes in The Oceans May Be Remnants of Ancient Supernovae

Cosmic dust may have altered life on Earth as we know it

Amateur Astronomers Capture an Asteroid or Comet Colliding With Jupiter

The object recently exploded in the atmosphere of the solar system's largest planet

NASA Spies a Supernova’s First Shockwave

Astronomers spot the first flash of a distant supernova in visible light

The green object is the comet 252P/LINEAR as it passed by the Larger Megellanic Cloud.

A Pair of Comets Are Making a Record-Breaking Pass by Earth

This is the closest a comet has come in 246 years

The northern lights glow over Castle Sands in Saint Andrews, Scotland at 10 P.M. Sunday, March 6, 2016. Captured by Aurorasaurus participant Alex Thompson

With Breathtaking Pictures, Citizen Scientists Help Map Auroras

Social media users help scientists figure out how to accurately forecast geomagnetic events

An illustration of galaxy superclusters and cosmic voids, similar to the structure of the BOSS Great Wall

Meet the BOSS, the Largest Structure in the Universe (So Far)

Astronomers recently discovered a wall of galaxies 1 billion light years across, larger than anything else yet identified in the cosmos

A view of the total solar eclipse captured from Donggala, Indonesia.

Check Out These Photos From Last Night’s Solar Eclipse

Parts of the pacific and Indonesia went dark last night as the moon moved directly between Earth and the sun

Don't Miss Jupiter Shine Bright Tonight

As Earth moves between Jupiter and the sun, the gas giant will outshine the stars

An annular solar eclipse is observed in Yantai, Shandong province, China, January 15, 2010.

A Solar Eclipse Will Darken Pacific Skies This Week

Though the actual eclipse can only be seen from select locations, don't miss the live stream of the event online

Meet GN-z11, the "newest" old galaxy discovered by Hubble.

Hubble Spotted the Oldest Galaxy It Has Ever Seen

Look back in time with a glimpse at a galaxy that's 13.4 billion light years away

Happy Leap Day! Brought to You by Julius Caesar

The leap year has a long history, stretching all the way back to 46 B.C.E.

CSIRO's Compact Array telescope picked the Fast Radio Burst's afterglow.

Astronomers Finally Tracked a Strange Radio Wave Burst to Its Source

With new insights into radio waves, scientists may be able to measure the mass of the universe

My God, it's full of gas.

Marvel at the Newest Map of the Milky Way

It is the most complete map of the cold galaxy ever made

Happy 543rd Birthday, Nicolaus Copernicus

The Renaissance scientist set the stage for modern astronomy

This artist’s impression shows the super-Earth 55 Cancri e in front of its parent star.

Hubble Gets a Whiff of Super-Earth Atmosphere For The First Time

The toasty planet’s atmosphere is similar to a gas giant’s

Happy 452nd Birthday, Galileo

The revolutionary who helped shape modern astronomy

An illustration of how gravitational waves ripple through the fabric of space-time.

Five Things to Know About Gravitational Waves

The internet is abuzz with rumors of a big announcement—here are a few things you should know to decipher the news

An artist's rendering of the galaxies hiding beyond the veil of the Milky Way.

Hundreds of Galaxies Were Found Hiding Behind Our Milky Way

The objects may help explain why our galaxy and its neighbors are hurtling towards a seemingly blank zone called the Great Attractor

This cuneiform tablet may re-write the history of math and astronomy.

Babylonians Were Using Geometry Centuries Earlier Than Thought

Ancient astronomers were tracking planets using math believed to have first appeared in 14th-century Europe

An artist's rendering of Planet Nine, looking back toward the Sun. This depiction is of a gaseous planet, like Uranus and Neptune, with lightning brightening the clouds on the dark side.

Evidence Stacks Up for a Planet Beyond Pluto

A new paper provides the strongest evidence yet for a real Planet X

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