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Comet Encke nearest sun March 10
Faithful Comet Encke is one of the shortest-period comets known. Its frequent returns near the sun helped reveal the true nature of comets.
March 10, 2017
Stardust sheds light on 1st stars
Astronomers observed a young galaxy, existing when the universe was only 4% of its current age. It had a mass of interstellar dust, formed during explosions of an earlier generation of stars.
March 8, 2017
Ceres’ bright spots are young
Scientists have learned that dwarf planet Ceres' bright spots are only 4 million years old. To geologists, youth means activity and, in this case, ice volcanos.
March 6, 2017
How do astronomers find exoplanets?
Stars are incredibly bright in contrast to any planets that may be orbiting them. So finding exoplanets - planets orbiting distant suns - isn't easy. Here's how it's done.
March 6, 2017
Webb telescope to probe 7 worlds
The nearness of 7 newly found Earth-sized planets - and the smallness their host star - make them perfect targets for the new space telescope that'll be Hubble's successor.
March 5, 2017
Astronomers respond to 7-planet find
Love this video of astronomers showing their excitement about the discovery of 7 Earth-sized planets orbiting a nearby star.
March 5, 2017
At the mouth of a Mars mega-flood
New images from ESA's Mars Express spacecraft show an ancient outflow region, where fierce floodwaters once raged.
March 2, 2017
Astronauts’ brains change shape in space
MRIs taken before and after missions show that astronauts’ brains compress and expand in space.
March 2, 2017
SpaceX to send 2 people around moon
SpaceX's Elon Musk would not name the 2 private citizens who approached the company with an offer to pay for a flight around the moon and back.
February 28, 2017
