Exoplanets TOP STORY

Extrasolar Planet 55 Cancri e Probably Has An Atmosphere

© NASA

55 Cancri e

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


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Exoplanets

Giant Planet Discovery Challenges Planetary Formation Theory

© University of Warwick

NGTS-1b

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.


Exoplanets

NASA: Iceball Planet Discovered Through Microlensing

NASA: Iceball Planet Discovered Through Microlensing

Scientists have discovered a new planet with the mass of Earth, orbiting its star at the same distance that we orbit our sun.


Exoplanets

Spring Cleaning in an Infant Star System

Spring Cleaning in an Infant Star System

This image depicts the dusty disc encircling the young, isolated star HD 169142.


Exoplanets

Fledgling Stars Try to Prevent Neighbors from Birthing Planets

Fledgling Stars Try to Prevent Neighbors from Birthing Planets

Newly formed stars are surrounded by a disc of dense gas and dust. This is called the protoplanetary disc, as material sticks together within it to form planets.


Exoplanets

Visualizing Debris Disks to Understand Planetary System Evolution

Visualizing Debris Disks to Understand Planetary System Evolution

When planets first begin to form, the aftermath of the process leaves a ring of rocky and icy material that's rotating and colliding around the young central star like a celestial roller derby.


Exoplanets

Astronomers Discover a Missing Link in Planet Formation

Astronomers Discover a Missing Link in Planet Formation

Planets are thought to form in the disks of dust and gas found around young stars. But astronomers have struggled to assemble a complete theory of their origin that explains how the initial dust develops into planetary systems.


Exoplanets

Studying TRAPPIST-1 With James Webb Space Telescope

Studying TRAPPIST-1 With James Webb Space Telescope

With the discovery of seven earth-sized planets around the TRAPPIST-1 star 40 light years away, astronomers are looking to the upcoming James Webb Space Telescope to help us find out if any of these planets could possibly support life.



More top stories from February.