Exoplanets TOP STORY

TRAPPIST-1 Planets Are Probably Rich in Water

© ESO

TRAPPIST-1 Planets Compared With Earth

A new study has found that the seven planets orbiting the nearby ultra-cool dwarf star TRAPPIST-1 are all made mostly of rock, and some could potentially hold more water than Earth.


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Exoplanets

A Hot Jupiter With Unusual Winds

© McGill University

Exoplanet CoRoT-2b

The hottest point on a gaseous planet near a distant star isn't where astrophysicists expected it to be - a discovery that challenges scientists' understanding of the many planets of this type found in solar systems outside our own.

Exoplanets

NASA Study Shows Disk Patterns Can Self-Generate

NASA Study Shows Disk Patterns Can Self-Generate

When scientists searching for exoplanets -- worlds located beyond our solar system -- first spotted patterns in disks of dust and gas around young stars, they thought newly formed planets might be the cause.


Exoplanets

Citizen Scientists Discover Five-Planet System

Citizen Scientists Discover Five-Planet System

In its search for exoplanets -- planets outside of our solar system -- NASA's Kepler telescope trails behind Earth, measuring the brightness of stars that may potentially host planets.


Exoplanets

Did Our Solar System Form In A Bubble Around A Giant Star?

Did Our Solar System Form In A Bubble Around A Giant Star?

Despite the many impressive discoveries humans have made about the universe, scientists are still unsure about the birth story of our solar system.


Exoplanets

Artificial Intelligence Used to Discover Eighth Planet Circling Kepler-90

Artificial Intelligence Used to Discover Eighth Planet Circling Kepler-90

Our solar system now is tied for most number of planets around a single star, with the recent discovery of an eighth planet circling Kepler-90, a Sun-like star 2,545 light years from Earth. The planet was discovered in data from NASA's Kepler Space Telescope.


Exoplanets

Extrasolar Planet 55 Cancri e Probably Has An Atmosphere

Extrasolar Planet 55 Cancri e Probably Has An Atmosphere

Twice as big as Earth, the super-Earth 55 Cancri e was thought to have lava flows on its surface.


Exoplanets

Giant Planet Discovery Challenges Planetary Formation Theory

Giant Planet Discovery Challenges Planetary Formation Theory

A giant planet -- the existence of which was previously thought extremely unlikely -- has been discovered by an international collaboration of astronomers, with the University of Warwick taking a leading role.


Exoplanets

An Exoplanet  With Titanium Oxide Snow

An Exoplanet With Titanium Oxide Snow

NASA's Hubble Space Telescope has found a blistering hot planet outside our solar system where it "snows" sunscreen.


Exoplanets

Looking for Debris Disks As Part of an Exoplanet Search

Looking for Debris Disks As Part of an Exoplanet Search

There's no map showing all the billions of exoplanets hiding in our galaxy -- they're so distant and faint compared to their stars, it's hard to find them.


Exoplanets

Hubble Observes Pitch Black Planet

Hubble Observes Pitch Black Planet

Astronomers have discovered that the well-studied exoplanet WASP-12b reflects almost no light, making it appear essentially pitch black.


Exoplanets

BoldlyGo Institute and NASA Sign Space Act Agreement for Joint Cooperation on Project Blue Mission

BoldlyGo Institute and NASA Sign Space Act Agreement for Joint Cooperation on Project Blue Mission

The BoldlyGo Institute (BoldlyGo) and National Aeronautics and Space Administration (NASA) have signed a Space Act Agreement to cooperate on "Project Blue," a mission to search for potentially habitable Earth-size planets in the Alpha Centauri system using a specially designed space telescope.


Exoplanets

Tracking The Birth Of A Super-Earth

Tracking The Birth Of A Super-Earth

How exactly planets form is still an open question with a number of outstanding problems.


Exoplanets

A Planet That Is Hotter Than Most Stars

A Planet That Is Hotter Than Most Stars

A newly discovered Jupiter-like world is so hot, it's being vaporized by its own star.


Exoplanets

Exoplanet HAT-P-26b Has A Primitive Atmosphere

Exoplanet HAT-P-26b Has A Primitive Atmosphere

A study combining observations from NASA's Hubble and Spitzer space telescopes reveals that the distant planet HAT-P-26b has a primitive atmosphere composed almost entirely of hydrogen and helium.


Exoplanets

Brown Dwarf Is Actually a Planetary Mass Object

Brown Dwarf Is Actually a Planetary Mass Object

Sometimes a brown dwarf is actually a planet -- or planet-like anyway.



More top stories from February.