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The universe seems to be pervaded with a previously unknown, and still unexplain

Dark Energy May 21, 2010

In galaxy cluster CL0024+1654, each yellow dot is a galaxy.

Dark Matter May 21, 2010

Tiny variations in the "afterglow" of the Big Bang are shown as different colors

Age of the Universe May 21, 2010

Rings encircle a young planet in this artist's concept.

Exoplanets May 21, 2010

Black Holes May 21, 2010

Radio Programs

New Names New names for a family of planets February 19, 2016

Planetary Pebbles Ingredients for a giant planet February 14, 2016

Featured Images

Artist's concept of a young Jupiter-like planet

Young Giant August 27, 2015

The system V664 Cassiopeia is creating a planetary nebula

Bread Crumbs July 23, 2015

Artist's concept of a moons orbiting a Jupiter-like exoplanet

Worlds of Worlds June 9, 2015

Ringfest May 20, 2015

Artist's concept of Scholz's Star passing close to the solar system

Former Neighbor May 7, 2015

Hubble Space Telescope image of a young star cluster

Anniversary Portrait April 23, 2015

G2 survives its swing around the black hole at the center of the Milky Way

Narrow Escape March 27, 2015

Artist's concept of MY Camelopardalis, a contact binary star system

Close Twins March 15, 2015