'Halloween comet' breaks apart after nearing sun
Scientists called this comet a true "sungrazer" because it passed within 1% of Earth's distance to the Sun.
Scientists called this comet a true "sungrazer" because it passed within 1% of Earth's distance to the Sun.
Geomagnetic Storm Watch issued after strong flare erupts from Sun
Aurora lights are possible in some parts of the U.S. on Monday.
Aurora lights are possible in some parts of the U.S. on Monday.
Volcanic ash from Mexican volcano spotted over Florida
Popocatépetl is Mexico’s most active volcano and has been erupting for decades about 45 miles southeast of Mexico City.
Popocatépetl is Mexico’s most active volcano and has been erupting for decades about 45 miles southeast of Mexico City.
Famous Alaska volcano sees seismic unrest after more than 30-year slumber
Several small earthquakes have been detected around Mt. Spurr this past week, prompting the Alaska Volcano Observatory to raise the volcano's alert level to "yellow" from the base green.
Several small earthquakes have been detected around Mt. Spurr this past week, prompting the Alaska Volcano Observatory to raise the volcano's alert level to "yellow" from the base green.
NASA astronaut released from hospital after 'medical issue' during splashdown
The SpaceX Dragon crew members completed a 235-day mission, 232 days of which were spent aboard the International Space Station conducting scientific research.
The SpaceX Dragon crew members completed a 235-day mission, 232 days of which were spent aboard the International Space Station conducting scientific research.
Time is running out to see Comet Tsuchinshan-ATLAS before it disappears for possibly forever
The comet made its first documented pass by Earth this month and is likely to disappear from our night sky for 80,000 years -- that is, if it survives its voyage around the solar system.
The comet made its first documented pass by Earth this month and is likely to disappear from our night sky for 80,000 years -- that is, if it survives its voyage around the solar system.
Trio of meteor showers to light up night sky in November
The Leonids and Southern and Northern Taurids meteor showers each reach their peaks sometime throughout November.
The Leonids and Southern and Northern Taurids meteor showers each reach their peaks sometime throughout November.
Microbial life may exist in Martian frozen water pools, study finds
Although evidence of life on Mars hasn’t yet been discovered during any of NASA's robotic missions, scientists believe it could be a different story in small pools of water under the surface.
Although evidence of life on Mars hasn’t yet been discovered during any of NASA's robotic missions, scientists believe it could be a different story in small pools of water under the surface.
Orionid meteor shower peaks this weekend: When and where to look up
Skygazers in both the Northern and Southern Hemispheres will be able to see the Orionids, weather permitting.
Skygazers in both the Northern and Southern Hemispheres will be able to see the Orionids, weather permitting.
Fat Bear Week 2024: Grazer takes the crown after confronting her cub’s killer
In an emotional turn of events, Grazer won the 2024 Fat Bear Week contest, defeating Chunk, the bear that killed her cub earlier this summer. Fans from around the world cast over 40,000 votes in this Alaskan wildlife competition.
In an emotional turn of events, Grazer won the 2024 Fat Bear Week contest, defeating Chunk, the bear that killed her cub earlier this summer. Fans from around the world cast over 40,000 votes in this Alaskan wildlife competition.
Mount Everest, the world's tallest mountain, is still growing — here’s why
Mount Everest is growing taller every year, and new research suggests that the merger of two rivers thousands of years ago plays a key role in its rise.
Mount Everest is growing taller every year, and new research suggests that the merger of two rivers thousands of years ago plays a key role in its rise.
Strongest solar flare in 7 years could lead to communication blackouts on Earth
The X9.0 flare takes the crown from the previous strongest flare of Solar Cycle 25, which was an X8.7 flare on May 14.
The X9.0 flare takes the crown from the previous strongest flare of Solar Cycle 25, which was an X8.7 flare on May 14.
Massive solar flare could trigger auroras this week: Will you be able to see it?
A massive solar flare could trigger auroras in the coming days. Here are the chances of seeing them in the United States.
A massive solar flare could trigger auroras in the coming days. Here are the chances of seeing them in the United States.
Fat Bear Week starts a day late after bear kills rival on live webcam
Fat Bear Week is back, but the annual contest that celebrates brown bears and their healthy appetites was delayed after a bear killed another bear on a live webcam.
Fat Bear Week is back, but the annual contest that celebrates brown bears and their healthy appetites was delayed after a bear killed another bear on a live webcam.
SpaceX launches rescue mission for 2 stranded NASA astronauts
SpaceX has launched a rescue mission for the two stuck astronauts at the International Space Station.
SpaceX has launched a rescue mission for the two stuck astronauts at the International Space Station.
VIDEO: Bear charges at man in his own garage
Alex Gold said he has seen bears before, but never as close as this.
Alex Gold said he has seen bears before, but never as close as this.
VIDEO: Octopus seen 'punching' fish to corral them while hunting for food
Video from a new study shows multiple examples of octopuses using their tentacles to punch fish.
Video from a new study shows multiple examples of octopuses using their tentacles to punch fish.
Comet Tsuchinshan-ATLAS puts on show in space before possible big show on Earth
Comet Tsuchinshan-ATLAS has been tantalizing astronomers on Earth for several months since its discovery last year.
Comet Tsuchinshan-ATLAS has been tantalizing astronomers on Earth for several months since its discovery last year.
Earth is getting a temporary second moon this fall
Earth will soon have a visitor — and not of the extraterrestrial kind. Astronomers found a small asteroid that will orbit our planet this fall, becoming a "mini-moon" temporarily.
Earth will soon have a visitor — and not of the extraterrestrial kind. Astronomers found a small asteroid that will orbit our planet this fall, becoming a "mini-moon" temporarily.
Wisconsin bear attack: Boy shoots, kills animal mauling father
A 12-year-old boy shot and killed a wounded black bear as it was mauling his father near their hunting cabin in the thick western Wisconsin woods.
A 12-year-old boy shot and killed a wounded black bear as it was mauling his father near their hunting cabin in the thick western Wisconsin woods.