Exo-Neptune AU Mic b (art)

Exoplanets

Infant “Hot Neptune” Provides Clues to Its Birth

How’d a nice young ice giant end up in such a hot orbit? Scientists investigate the mysterious exoplanet AU Microscopii b.

Artist's illustration of merger-triggered supernova

Stellar Science

New Kind of Supernova Implodes Stars Before Their Time

Astronomers have found the first circumstantial evidence for a supernova triggered by a merger with a neutron star or maybe even a black hole.

Venus

Solar System

Venus: Thin-skinned and Likely to Blow

Scientists found a strange little volcanic feature on the edge of a Venusian corona, giving further credence to the theory that the planet has a thin outer layer and an active interior.

Gale Crater

Solar System

Gale Crater on Mars: An Ancient Lake or Just Puddles?

A new study suggests that wind, not water, created the rock layers in Gale Crater, where the Curiosity rover roams.

Radar view of Venus

Solar System

Venus Surface Is Fragmented Like “Pack Ice”

A new analysis of old data suggests that some of our sister planet’s unique surface formations are due to a “squishy” crust and an active interior.

CATegories of Floofs

People, Places, and Events

Cakes, Cats, and Stars — Astro April Fools

Astronomers turn their attention to the true puzzles of the universe: cats, Jaffa Cakes, and the coming planet–black hole apocalypse.

Elliptical galaxy NGC 1453

Cosmology

New Studies Agree: The Universe Is Expanding Faster Than Expected

Measurements of elliptical galaxies provide a new way of calculating the current expansion rate of the universe. And the results are adding to a growing controversy.

Mars water map

Solar System

New Map of Ice on Mars Will Aid Future Crewed Missions

Scientists have made a new and improved map of possible water-ice reservoirs on Mars.

Exomars Trace Gas Orbiter

Solar System

Chlorine and Water Are in the Air in Martian Summertime

Two studies of the Martian atmosphere are changing the way we think about its current climate and its ancient past.

Gamma-ray burst

Galaxies

Astronomers Find Most Distant Gamma-ray Burst Yet

From the farthest-known galaxy in the observable universe comes the brightest and most energetic of events: a possible gamma-ray burst.

Astrobiology

Is the Phosphine Biosignature on Venus a Calibration Error?

The already tentative detection of phosphine is under heavy scrutiny from the scientific community. A problem with the ALMA data hasn't helped.

Kepler concept

Exoplanets

Earth-size Planets Are Common, Kepler Retrospective Finds

A new, full analysis of Kepler data finds at least 300 million Earth-size planets in the habitable zone around Sun-like stars in our galaxy.

Pioneer Venus

Solar System

Did Pioneer Venus Find Phosphine First?

NASA's Pioneer Venus mission, which launched in 1978, found the first tantalizing clues of phosphine, a potential biosignature gas — but it took 40 years to realize it!

Hot Jupiter around a white dwarf

Exoplanets

Giant Planet Found Around a White Dwarf

Astronomers have found a Jupiter-size planet orbiting a much smaller white dwarf. The discovery shows what a system might look like after its star's death.

EnVision Orbiter

Solar System

Race to Venus: How We’ll Verify Phosphine

Confirming phosphine's presence on Venus is difficult from Earth . . . and that makes a good case for a mission to our sister planet.

Gibbous Venus from Akatsuki

Solar System

Potential Biosignature Found in Venus’s Clouds

Astronomers might have found a potential indication of life in the clouds of Venus.

Advertisement
Advertisement
Advertisement
Advertisement