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On this planet, a new year every 8.5 hours
Researchers have discovered an Earth-sized exoplanet that whips around its host star in a mere 8.5 hours — one of the shortest orbital periods ever detected.
August 19, 2013
The unexpected, exotic characteristics of hot Jupiters
An exotic class of exoplanets called "hot Jupiters" are even weirder than astronomers imagined. While these worlds may have Earth-like blue skies, new data show that they are anything but Earth-like.
August 19, 2013
Video: Perseid meteor explodes and leaves a vapor trail
A meteor during the recent Perseid meteor shower that exploded and then behind a vapor trail, captured on video by Michael Chung.
August 16, 2013
Video: Watch two moons pass overhead in Mars night sky
Mars' two moons, Phobos and Deimos, seen by the Curiosity Rover, passing overhead in the Mars night sky.
August 16, 2013
Voyager 1 has left the solar system
Voyager 1 appears to have at long last left our solar system and entered interstellar space, says a University of Maryland-led team of researchers.
August 15, 2013
Watch Saturn’s moon Iapetus hide a bright star
The Cassini spacecraft, orbiting Saturn, captured this mini-eclipse of a star by Iapetus on August 10.
August 15, 2013
A magnetar at the heart of our Milky Way
Radio astronomers are using a pulsar with a strong magnetic field to investigate a supermassive black hole at the center of our galaxy.
August 14, 2013
Dwarf galaxy caught ramming into a large spiral
X-ray observations have revealed a giant cloud of superheated gas in a galaxy about 60 million light-years from Earth.
August 14, 2013
New NASA image shows Potentially Hazardous Asteroids
These are all the asteroids that would cause significant regional damage to our human civilization in the event of impact.
August 12, 2013
Gemini’s much-anticipated infrared instrument goes on-sky
Gemini Observatory’s latest instrument, a powerful infrared camera and spectrograph at Gemini South, reveals its potential in a series of striking on-sky commissioning images.
August 9, 2013
