New Planets

Scientists have discovered the strongest evidence to date for a stratosphere on a planet outside our solar system, or exoplanet.

One night three months ago, Rosa Castro finished her dinner, opened her laptop, and uncovered a novel object that was neither planet nor star.

In the search for planets similar to our own, an important point of comparison is the planet's density.

Whether these rocky planets host life is another question.

NASA’s Kepler space telescope team has identified 219 new planet candidates, 10 of which are near-Earth size and in the habitable zone of their star.

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

Backyard Worlds volunteers make first discovery: A cold, close brown dwarf.

Researchers have discovered a new planet orbiting a star 320 light years from Earth that has the density of Styrofoam.

The combined power of three space observatories has helped astronomers uncover a moon orbiting the third largest dwarf planet, catalogued as 2007 OR10.

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