1–20 of 23 results
Spiral galaxies host Fast Radio Bursts

Stellar Science

Fast Radio Bursts Tied to Spiral Arms

New Hubble observations have pinned five enigmatic radio bursts to the arms of spiral galaxies, narrowing down possible explanations.

Far-out exoplanet YSES 2b


Far-out Gas Giant Exoplanet Puzzles Astronomers

Astronomers have discovered a super-Jupiter orbiting its young star on a surprisingly wide orbit. How did it get there?

Cygnus X-1

Black Holes

First-detected Black Hole is More Massive Than We Thought

A higher mass for Cygnus X-1, the first black hole to be discovered, challenges ideas about the evolution of massive stars.

Tucana II


Our Tiny Galactic Neighbor Hosts Ancient Stars

New observations show ancient stars lining the edges of the ultra-faint dwarf galaxy Tucana II, a tiny satellite of the Milky Way.

Iron rain on ultra-hot planet


Iron Might Rain on This Hot Jupiter

New observations show a signature that could come from iron rain on one side of hot Jupiter WASP-76b.

Beating heart on Pluto

Solar System

Pluto's Icy Heart "Beats," Driving Planet-Scale Winds

New computer simulations suggest that the "beating" of Pluto's frozen heart drives weak winds on this remote world in the outer solar system.

Proxima Centauri c


Astronomers Discover Second Planet in Nearest Star System

Astronomers have announced the discovery of Proxima Centauri c, an inhospitable super-Earth just 4.3 light-years away.

Colliding exoplanets (artist's concept)


Astronomers Monitor Exoplanet-Scale Collision

New infrared observations probe a system that underwent a planetary-scale collision tens of thousands of years ago.

Young star's magnetic field

Stellar Science

Scientists Find Stellar Flare 10 Billion Times More Powerful Than Those on the Sun

Scientists have caught a powerful flare of submillimeter-wavelength radiation from a young star in the Orion Nebula.

Birth of the Moon?

Solar System

Did a Mars-size Body Bring Life-essential Elements to Earth?

Collision with a Mars-size body — the same body thought to have formed the Moon — might also have brought life-supporting volatile elements to Earth.

Quasar (art)

Black Holes

Astronomers Discover Most Distant Lensed Quasar

The most distant magnified quasar known promises to shed light on the universe's early years.


Planets Appear More Massive Than Disks Where They Form

Infant worlds might gobble up dust quickly, the interstellar environment might feed protoplanetary disks, or planet-building dust could be hiding in plain sight. Although disks of gas and dust around young stars are a necessary precursor to planet formation, an expanded survey of stars in our Galaxy confirms earlier doubts…

Hottest Jupiter


Iron and Titanium Found in Ultrahot Jupiter

New observations provide solid evidence of heavy metals in a gas giant exoplanet’s atmosphere.

Medusae Fossae Formation close-up

Solar System

Found! The Largest Source of Dust on Mars

New results show that the Medusae Fossae Formation, a set of broad and enigmatic plains, provides most of the fine dust found everywhere on the Martian surface.

Hibonite crystals formed in the early solar system

Solar System

Tiny Blue Crystals Show Evidence of the Sun’s Active Youth

Scientists studying microscopic minerals found in a meteorite have discovered evidence of the feistiness of the toddler Sun.

PDS 70b


First Confirmed Image of Newborn Planet

Astronomers using a new instrument on the Very Large Telescope in Chile have directly imaged a newborn planet.

Hill on Medusae Fossae Formation

Solar System

Martian Supervolcano Created Mysterious Rock Formation

Scientists have discovered that a supervolcano likely created a mysterious rock formation on Mars some 3 billion years ago.

Supernova Remnant E0102

Stellar Science

Astronomers Discover Lonely Neutron Star with a Curious Past

New observations have helped astronomers identify the source of a 2,000-year-old supernova explosion. But this blast, and the neutron star that created it, seem to have a curious history that defies explanation.

Bursting Pulsar before transition (artist's concept)

Space Missions

The X-ray Legacy of RXTE

The RXTE satellite, which reentered Earth's atmosphere over the tropics on April 30th, leaves behind a legacy of discoveries and data.

Solar System

Mud Cracks on Mars Reveal Lake's History

Curiosity spotted polygonal shapes on the surface of rocks on Mars — now, analysis of these mud cracks is revealing the history of the long-ago lake that once filled Gale Crater.