Astrophysics

The asteroid Pallas, imaged by the European Southern Observatory's Very Large Telescope

The Most Cratered Object in the Asteroid Belt Looks Like a Golf Ball

Pallas's odd orbit sends it crashing through the asteroid belt, colliding with other objects along the way

The left lobe of Pluto's distinctive heart is called Sputnik Planitia, covered with craterless plains of frozen nitrogen that vaporize each day.

Pluto Has a Nitrogen Heartbeat

Nitrogen on the dwarf planet’s glacial 'heart' becomes vapor each day and freezes each night

In the heart of a new dark matter detector, LUX-ZEPLIN (LZ), a 5-foot-tall detector filled with 10 tons of liquid xenon, will search for hypothetical dark matter particles to produce flashes of light as they traverse the detector.

New Generation of Dark Matter Experiments Gear Up to Search for Elusive Particle

Deep underground, in abandoned gold and nickel mines, vats of liquid xenon and silicon germanium crystals will be tuned to detect invisible matter

Vera C. Rubin, who advanced our understanding of dark matter, operating the 2.1-meter telescope at Kitt Peak National Observatory.

For the First Time, a National U.S. Observatory Has Been Named for a Female Astronomer: Vera Rubin

The Vera C. Rubin Observatory will image the entire visible night sky every few nights

Maat Mons, Venus' highest volcano, one of several that may still be active in present day

Active Volcanoes May Still Exist on Venus

Scientists baked volcanic minerals in a box furnace to model how quickly lava ages on the planet’s harsh surface

These are ten of the biggest strides made by scientists in the last ten years.

The Top Ten Scientific Discoveries of the Decade

Breakthroughs include measuring the true nature of the universe, finding new species of human ancestors, and unlocking new ways to fight disease

NASA's Sun-Orbiting Probe Reveals New Secrets of Our Host Star

The first findings from the Parker Solar Probe change what we know about the workings of our nearest star

Students and teachers can download 3-D print-ready files of the Tyrannosaurus rex and Triceratops skulls.

Ten Smithsonian Artifacts You Can 3-D Print

The list includes Neil Armstrong’s spacesuit, an Abraham Lincoln life mask and a coral skeleton

Jupiter and its Great Red Spot as seen by the Hubble Telescope on June 27, 2019.

Jupiter's Great Red Spot May Not Be Dying Out Just Yet

Earlier this year, the spot appeared to be losing big chunks, but new research suggests it was gobbling up a smaller storm

The central region of our Milky Way is a bustling galactic downtown with a supermassive black hole at its hub.

Chandra Telescope Observes Two Decades of Turning Theory Into Reality

A new book, 'Light From the Void,' showcases the telescope’s images of nebulas, supernovae, supermassive black holes and more

First Global Map of Saturn's Moon Titan Reveals Secrets of Earth's 'Deranged' Twin

The map showcases the planet's flat plains, sand dunes, hilly terrain and lakes full of liquid methane

An artist's concept showing a "naked-eye" view of a GRB up close. Observations suggest that material is shot outward in a two-component jet (white and green beams). Credit: NASA/Swift/Mary Pat Hrybyk-Keith and John Jones

Astronomers Detect Record-Breaking Gamma Ray Bursts From Colossal Explosion in Space

A powerful outburst in a distant galaxy produced photons with high enough energies to be detected by ground-based telescopes for the first time

Left to right, top to bottom: Sheperd Doeleman, Michael Johnson, Sandra Bustamante, Jonathan Weintroub, James Moran, Aleks Popstefanija, Daniel Palumbo; Feryal Ozel, Joseph Farah, Neil Erickson, Peter Galison, Katie Bouman, Dominic Pesce, Garrett K. Keating; Nimesh Patel, Alexander Raymond, Kazinori Akiyama, Vernon Fath, Mark Gurwell, Gopal Narayanan, Peter Schloerb

Meet the Global Team That Captured the First Image of a Black Hole

Never before had scientists seen the phenomenon until they rallied colleagues around the world to view a galaxy far, far away

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.

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

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!

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.

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.

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

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