Extrasolar Planets

Baby Planet Puzzles Astronomers

In June, researchers from the University of Rochester discovered a planet around a star so young that it shouldn't exist…

20 years ago

First Direct Image of An Exoplanet?

A team of European and US astronomers think they've taken the first direct image of a planet orbiting another star…

20 years ago

New Class of Planets Found

Astronomers announced today that they have discovered a new class of extrasolar planets which are between 10 and 20 times…

20 years ago

Smallest Extrasolar Planet Found

A team of European astronomers have used the European Southern Observatory's HARPS Instrument to find the smallest extrasolar planet ever…

20 years ago

Small Telescope Finds a Huge Planet

Planet hunting has traditionally only been possible with very large telescopes, capable of detecting tiny changes around distant stars which…

20 years ago

The Search for More Earths

When astronomers first realized that the stars in the sky were like our Sun, only more distant, they wondered if…

20 years ago

Observatory Finds Its First Planet

The McDonald Observatory's Hobby-Eberly Telescope has found its first extrasolar planet. The planet is 2.84 times of the mass of…

20 years ago

Asteroids Make Tau Ceti Lethal

Astronomers have found that a nearby star, Tau Ceti, is surrounded by 10 times as many asteroids and comets as…

20 years ago

Spitzer Finds Youngest Planet

NASA's Spitzer Space Telescope has peered through the dusty haze into the construction zones for new planets and found organic…

20 years ago

Two Planet Finding Missions

One of the big goals of astronomy is to answer the question: are we alone? In order to find out…

21 years ago