Latest News About Stars and Galaxies
Stars are giant, luminous spheres of plasma. Galaxies consist of stars, stellar remnants, dust, gas, and dark matter, bound together by gravity. Learn more about stars and galaxies.
The bright yellow star Arcturus is putting on a dazzling show in the night sky.
A spiral galaxy is being distorted by the gravitational pull of a neighbor in a new photo from the Hubble Space Telescope.
A spectacular time-lapse video of the landscapes and skyscapes of El Teide, a huge volcanic peak in the Canary Islands.
Luke Skywalker's home planet of Tatooine is a vividly realized alien world, but it may be missing one key detail: black plants.
The famed supernova Cassiopeia A may have been visible in 1630, five decades earlier than thought.
Skywatchers can observe the first full moon of the spring season in the Northern Hemisphere Sunday (April 17).
New images reveal photogenic, but puzzling, tangled cosmic filaments.
The first galaxies formed much earlier than previously thought — just 200 million years after the universe's birth.
Astronomers today are lucky, with a plethora of evidence from the Big Bang readily available.
Astronomer Joe Rao recounts an amazing trip to the Southern Hemisphere to view a whole new sky.
NASA's planet-hunting Kepler space observatory is showing it's a multi-purpose instrument.
Astronomers discovered a time delay between two jets of gas from a young star.
Now is a good time to see the Big Dipper stars and constellation Ursa Major.
Sub-brown dwarfs – a mid-point between planets and stars – could prove fertile grounds for extraterrestrial life.
Astronomers have taken the pulse of red giant stars using starquakes.
The star cluster NGC 371 glows pink and red in a new photo from ESO's Very Large Telescope.
Spring is here, and with it a seasonal star formation is front and center in the night sky.