Traces of water and organic compounds could be all around us, floating around space on ubiquitous interplanetary dust particles.
NASA camera snaps image of the potentially hazardous near-Earth object known as 1998 KN3 as it makes its way past the Orion Nebula.
Roughly 28 million years ago, a comet rained down a "shockwave of fire" over Egypt when it entered Earth's atmosphere and exploded, according to findings that offer the first concrete proof of such a phenomenon.
Known for its massive fireballs and displaying more than 100 meteors per hour, the impressive Geminid show is not to be missed.
It could be the brightest comet in decades, or even centuries, and it's coming to visit for the holidays. It might also fizzle out.
Potential "comet of the century" will be visiting the sun for Thanksgiving Day. There's one last chance to catch this week before it fizzles or makes history.
The European spacecraft finally sent a signal home after 31 months of hibernation. Now it prepares to meet up and ride along with a comet later this year.
Furloughs are expected to impact several federal science programs, but essential services related to nation's safety and defense will be unaffected.
The potential comet of the century grazed the sun last week, and it now appears it didn't survive to put on a once-in-a-lifetime Christmas show for us.
This month, a spectacular sight is coming to the nighttime sky. Here's the lowdown on how you can catch a glimpse of the Perseids.