Nov. 27, 2013
"Rock comet" 3200 Phaethon has sprouted a tail, confirming that the mysterious object is the source of the annual Geminid meteor shower.
Nov. 27, 2013
Researchers working with magnetic fluids on the International Space Station are taking "smart materials" to the next level. With proper coaxing, molecules in microgravity can assemble themselves into "genius materials" with surprising properties. This is opening a new frontier in material science.
Nov. 24, 2013
On Nov. 28th. Comet ISON will have a perilous close encounter with the Sun. In today's story from Science@NASA, experts discuss what might happen if the comet gets hit by a solar storm at point-blank range.
Nov. 15, 2013
Consider it a cosmic coincidence: On Nov. 18-19, two comets (ISON and Encke) are going to fly by the planet Mercury in quick succession. NASA's MESSENGER spacecraft will have a front-row seat for the rare double flyby.
Nov. 14, 2013
Comet ISON is plunging toward the sun for a perilous pass through the solar atmosphere on Thanksgiving (Nov. 28th). In today's story from Science@NASA, a leading expert lays out some possible outcomes for the sundiving comet--from premature disintegration to spectacular survival.
Nov. 13, 2013
NASA has released a natural-color image of Saturn from space, the first in which Saturn, its moons and rings, and Earth, Venus and Mars, all are visible.
Nov. 12, 2013
Mars was once on track to become a thriving Earth-like planet, yet today it is an apparently lifeless wasteland. A NASA spacecraft named MAVEN will soon journey to Mars to find out what went wrong on the Red Planet.
Nov. 7, 2013
The Hubble Space Telescope has spotted a strange asteroid spewing six comet-like tails of dust. This could be a sign that the asteroid is breaking apart.
Nov. 1, 2013
As Voyager 1 recedes from the solar system, researchers are listening for "interstellar music" to learn more about conditions outside the heliosphere.
Oct. 31, 2013
Ten years after the original Halloween Storms, the sun is putting on a repeat performance--albeit not nearly so scary.