Iron rain on ultra-hot planet

Exoplanets

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

Exoplanets

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)

Exoplanets

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.

Exoplanets

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

Exoplanets

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

Exoplanets

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)

Spacecraft and 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.

Neutron star with red giant companion

Stellar Science

Astronomers Witness X-ray Burst from Newborn Neutron Star

Astronomers have discovered a newborn neutron star in a rare pairing with an old red giant companion.

Astronomy & Observing News

"Coreshine" in a Cloud's Black Heart

The infrared Spitzer Space Telescope peers into hidden star-forming regions to see the illuminated insides of dark cocoons.

Astronomy & Observing News

Ancient Galaxies Finally Get Together

It's taken some 10 billion years, but a compact group of small galaxies is at last merging into a single big one.

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