1–20 of 275 results
Brown dwarf aurorae

Exoplanets

Radio Transmission from a Brown Dwarf

The radio discovery of a brown dwarf holds promise for future exoplanet detections.

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.

ALPINE galaxies

Galaxies

60-second Astro News: Mature Infant Galaxies & A Possibly Rogue Planet

This week in astronomy news: Distant galaxies that look older than they are and a terrestrial planet that might be drifting through our galaxy.

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.

Two giants orbit a Sun-like star

Exoplanets

First Image of a Young Sun and Two Giant Planets

For the first time, astronomers have imaged multiple planets orbiting a Sun-like star.

Artist's impression of Beta Pictoris

Exoplanets

Alignment of a Star and a Planet

Unlike in our solar system, not all planets orbit in the same direction as their stars rotate. A nearby planetary system may reveal how these orbits form.

Planet-forming disk

Milky Way

Close Encounters in the Milky Way — and What They Mean for Planets

New research shows stellar flybys are common in our galaxy’s crowded center. That could have both good and bad (but mostly bad) effects on growing planets.

Super-Earth Family Portrait

Exoplanets

Three Nearby Exoplanets to Explore

A trio of nearby exoplanets make tempting new targets for next-gen telescopes.

Hot Jupiter KPS-1b

Pro-Am Collaboration

First Discoveries of a Pro-Am Exoplanet Survey

A pair of professional and amateur astronomers have teamed up to fill an important niche in exoplanet research.

Artist's illustration of a possibly disintegrating planet

Exoplanets

Are We Watching a Planet Disintegrate?

Among the wealth of exoplanets we’ve discovered beyond our solar system, some are temperate, some less so. New observations have now revealed what may be a particularly inhospitable environment: a planet literally disintegrating as it orbits its host.

SPHERE image of AB Aurigae

Exoplanets

Astronomers Witness the Birth of Planets

Two new sets of observations show astronomers what planet formation looks like.

Exoplanets

Rescuing an Overlooked Planet

The Kepler False Positive Working Group has identified an Earth sized planet in the habitable zone of a M-dwarf star that was marked as a false positive.

Asteroid collision

Exoplanets

Fomalhaut b: Exoplanet or Puff of Dust?

Is Fomalhaut b “the planet that never was”? Astronomers continue to contest the nature of this directly imaged object around a nearby star.

Star with two suns

Exoplanets

How Amateurs Could Help Future Exoplanet Observations

Large observatories will require precise timing info to measure as many exoplanet atmospheres as possible. Backyard astronomers have the power to keep that intel fresh.

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.

Globular cluster NGC 4147

Solar System

60-Second Astro News: Planets in Tight Quarters & Kuiper Belt Forays

Astronomers have calculated the loss of planets around stars in globular clusters, and New Horizons returns observations of worlds 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.

Star with two suns

Exoplanets

NASA's TESS Introduces Us to Our Planetary Neighbors

NASA's TESS mission announces the results from its first year of exoplanet-hunting in the southern sky, introducing us to some of our planetary neighbors.

Debris ring around a white dwarf star

Exoplanets

How a White Dwarf Is Vaporizing Its Giant Planet

Astronomers have long suspected that white dwarfs eat their planetary companions. Now, indirect observations show the process in action.

LHS 1140 b

Exoplanets

New Method May Expedite Search for Exoplanets with Atmospheres

A team of astronomers propose screening exoplanets by their temperatures to determine whether they host an atmosphere — and are worth following up.

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