NASA spots a new comet flying in from a distant star system
The newly discovered interstellar visitor is just the third of its kind and fascinates astronomers who hope to learn from it about galaxies far, far away.
space
What's that in the sky? We're not sure, but the fireball was very bright
The object was likely either a meteor or space junk, with most sightings of the streak of light and fireball coming from Georgia and South Carolina, the National Weather Service said.
Operation Rainbow Space Baby: An astronaut's journey with IVF
Struggling to have a second child, astronaut Kellie Gerardi uses her social media presence to let others know they're not alone.
How to see the 'blood worm moon' total lunar eclipse tonight
The "blood worm moon," so named for the reddish hue of its glow and the time of year it's occurring, will be visible in every U.S. state.
Do you remember 'Sharpiegate'? What about Roman numerals? Find out in the quiz
This week calls for some throwback thinking. If you can recall how Roman numerals work, you'll get at least one question correct.
New photos show the volcanic plains of Mercury after a spacecraft fly-by
The BepiColombo spacecraft flew less than 200 miles from Mercury's surface and photographed volcanic plains and icy craters.
Northern lights may brighten some New Year's skies over the U.S.
The northern lights could be visible Tuesday night and Wednesday night over the Northern Hemisphere due to a geomagnetic storm.
Scientists await signal from spacecraft after historic close encounter with the sun
To get so close, the Parker Solar Probe had to withstand the sun's extreme heat and radiation like no spacecraft before it.
The International Space Station adjusts its orbit to avoid space debris
There are at least 19,000 pieces of space debris in Earth's orbit, not including active satellites, that the U.S is monitoring.
Stargazers can see the final supermoon of the year this weekend
The next supermoon — which appears larger and brighter than a regular full moon due to its proximity to Earth — will not be visible for nearly a year.