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Astrophysics

The thread-like structures in this image from the Japanese satellite Hinode are spicules, giant plumes of gas that transfer energy through the sun’s various regions.

New Research

Millions of Plasma ‘Spicules’ Could Explain the Extreme Heat of the Sun’s Atmosphere

New observations suggest interactions between opposite magnetic fields cause millions of super hot tendrils to erupt from the surface of the sun

Trending Today

NASA Names Most Distant Object Ever Explored ‘Arrokoth,’ the Powhatan Word for Sky

The space rock’s initial nickname, Ultima Thule, drew criticism for its ties to Nazi ideology

A composite image of Mercury's 2016 transit.

How to Watch Mercury’s Rare Transit Across the Sun

Step one: Protect your eyes

After two eclipse expeditions confirmed Einstein's theory of general relativity, the scientist became an international celebrity.

One Hundred Years Ago, Einstein’s Theory of General Relativity Baffled the Press and the Public

Few people claimed to fully understand it, but the esoteric theory still managed to spark the public’s imagination

It’s Death By A Million Cuts on This Slasher Planet!

Trending Today

NASA Celebrates Halloween With These Interstellar Horror Posters

The artwork highlights the weird world of exoplanets where it rains glass and planets circle zombie stars

An artists interpretation of the Yeti Galaxy.

New Research

Behold This ‘Cosmic Yeti,’ a Monster Galaxy From the Beginning of Time

Astronomers recently spotted 12.5 billion-year-old light from the giant galaxy, which helps explains the evolution of the early universe

Artist's impression of gas flow in a protoplanetary disk.

New Research

To Find Baby Planets, Researchers Chase Waterfalls of Gas

Analysis of data from the ALMA telescope shows gas flows from the surface to middle of protoplanetary discs as new planets form

Illustration of a hot Jupiter planet in the Messier 67 star cluster. Hot Jupiters are so named because of their close proximity — usually just a few million miles — to their star, which drives up temperatures and can puff out the planets.

What Astronomers Can Learn From Hot Jupiters, the Scorching Giant Planets of the Galaxy

Many of the planets that are roughly the size of Jupiter orbit right next to their stars, burning at thousands of degrees

James Peebles, Michael Mayor and Didier Queloz

Trending Today

Three Win Physics Nobel for Showing Our Place in the Cosmos

Half goes to cosmologist James Peebles for work on cosmic background and dark matter and half goes to the team that discovered the first exoplanet

Cool Finds

New Organic Compounds Found in Plumes From Saturn’s Icy Moon Enceladus

Analysis of data from the late, great Cassini spacecraft reveals the moon is spurting oxygen and nitrogen-bearing organic compounds into space

Artist's conception of a watery Venus.

New Research

Venus Could Have Been Habitable for Billions of Years

New simulations show the planet could have maintained moderate temperatures and liquid water until 700 million years ago

Charlotte Moore Sitterly made huge strides in our understanding of how atoms are structured and what stars, especially our sun, are made of.

Women Who Shaped History

How Charlotte Moore Sitterly Wrote The Encyclopedia of Starlight

The “world’s most honored woman astrophysicist” worked tirelessly for decades to measure the makeup of the sun and the stars

Cool Finds

Recently Discovered Neutron Star Is Almost Too Massive to Exist

The star J0740+6620 is 2.14 times the mass of our sun but just 12 miles in diameter, approaching the density of a black hole

The green blob of X-rays in the lower left quadrant of the Fireworks galaxy lasted about 10 days before disappearing.

New Research

Astronomers Puzzle Over Short-Lived Glowing Green Light Bursts

The ultra luminous X-rays lasted about 10 days in the aptly named Fireworks galaxy

New Research

New 3-D Map Shows Milky Way’s Big Twist

By mapping the distance of Cepheid stars, researchers reveal that our galaxy is warped

An artist's visualization of the star S0-2 as it passes by the supermassive black hole at the galactic center. As the star gets closer to the supermassive black hole, it experiences a gravitational redshift that is predicted by Einstein's general relativity. By observing this redshift, we can test Einstein's theory of gravity.

Future of Space Exploration

A Star Orbiting in the Extreme Gravity of a Black Hole Validates General Relativity

The star S0-2 gets so close to the supermassive black hole at the center of the galaxy that it can be used to test our fundamental understanding of gravity

Future of Space Exploration

First Moon-Forming Disk Detected Swirling Around an Exoplanet

Telescope observations suggest that a cloud of gas and dust around a planet 370 light-years away may be coalescing into planet-sized moons

Artist's rendering of the planets orbiting PDS 70.

Future of Space Exploration

Astronomers Snap a Rare Picture of Two Baby Planets

The Very Large Telescope imaged Planets PDS 70b and PDS 70c about 370 light years away creating a gap in the gas and dust disk around their star

The sixty Starlink satellites before being deployed.

Future of Space Exploration

Astronomers Worry New SpaceX Satellite Constellation Could Impact Research

The first of SpaceX’s 12,000 Starlink broadband satellites launched last week, raising fears they could interfere with ground-based telescopes

Future of Space Exploration

One-Third of Exoplanets Could Be Water Worlds With Oceans Hundreds of Miles Deep

A new statistical analysis suggests seas hundreds of miles deep cover up to 35 percent of distant worlds

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