Super-Earths are more common and more habitable than Earth. Astronomers are finding more of the billions out there. By Chris Impey published 2 October 22 Astronomers now routinely discover planets orbiting stars outside of the solar system — they're called exoplanets.
Gamma rays from a dwarf galaxy solve an astronomical puzzle By Roland Crocker published 2 October 22 A glowing blob known as "the cocoon" has puzzled astronomers since it was discovered in 2012.
What is the moon phase today? Lunar phases 2022 By Tariq Malik published 2 October 22 Reference See the phase of the moon tonight and the rest of the moon phases for 2022, and when you can see them.
Rare diamonds suggest water lurks much deeper in Earth's interior than scientists thought By Rebecca Sohn published 2 October 22 Clues about water in Earth's deep interior were recently extracted from rare diamonds.
Missing element for life may be present in ocean of Saturn's moon Enceladus By Keith Cooper published 2 October 22 The underground ocean of Saturn's moon Enceladus may contain significant amounts of phosphorus, which is vital for life as we know it.
Space photos: The most amazing images this week! By Doris Elin Urrutia published 1 October 22 An astrophotographer takes an epic composite image of Jupiter, NASA slams a spacecraft into an asteroid, and Hurricane Ian is monitored from space. These are some of this week's top stories.
The top space stories of the week! By Doris Elin Urrutia published 1 October 22 NASA slams into an asteroid, astronomers analyze ancient mega-supernovas and an astronaut watches Hurricane Ian from space. These are some of this week's top stories.
Ancient solar eclipse records reveal how Earth's rotation has changed By Robert Lea published 1 October 22 Newly discovered records of solar eclipses seen in the Eastern Mediterranean reveal how Earth's motion has evolved.
New evidence for liquid water on Mars suggests the planet is geothermally active By Robert Lea published 30 September 22 Martian ice caps dip and rise and it may be evidence of liquid water lurking underneath them But what keeps that water from freezing?
What are wormholes? An astrophysicist explains these shortcuts through space-time By Dejan Stojkovic published 30 September 22 A wormhole is like a tunnel between two distant points in our universe that cuts the travel time from one point to the other.
Hurricane Ian regains strength, heads toward South Carolina as NASA's Florida spaceport recovers By Tariq Malik published 30 September 22 Hurricane Ian regained strength as it barreled toward South Carolina on Friday (Sept. 30) after passing over NASA's Kennedy Space center spaceport in Florida a day earlier.
Hubble Space Telescope spots protective shield against greedy Milky Way By Robert Lea published 30 September 22 An odd shield of supercharged gas protects dwarf galaxies from being ripped apart by the gravitational pull of the Milky Way, 30 years' worth of observations by the Hubble Space Telescope reveal.
Advanced AI discovers a treasure trove of gravitational lenses By Keith Cooper published 30 September 22 A machine-learning algorithm has helped astronomers discover thousands of gravitational lenses predicted by Einstein.
Behold! Our closest view of Jupiter's ocean moon Europa in 22 years By Elizabeth Howell published 30 September 22 NASA's Juno spacecraft skimmed close above the surface of icy Europa Thursday (Sept. 29), capturing a view of the crust that is just the start of our new study of this ocean world.
Why are sunspots black? By Brandon Specktor published 30 September 22 Why are sunspots black? According to astronomers, it may be a big, cosmic optical illusion.
Pictures from space! Our image of the day By Space.com Staff published 30 September 22 NASA's Jupiter explorer Juno has made a close flyby of the giant planet's ice-covered moon Europa, providing the most detailed views of this strange world in more than twenty years.
3D sky: How astronomers measure the size, luminosity and distance of stars By Joe Rao published 30 September 22 Stars differ in size, luminosity and distance from us. We discuss how astronomers measure these three values to understand the three-dimensional sky.
SpaceX, NASA look at launching Dragon to service Hubble Space Telescope By Mike Wall published 30 September 22 Astronauts could visit the Hubble Space Telescope again someday, this time on a SpaceX Dragon.
DART asteroid crash seen by James Webb, Hubble space telescopes (photos) By Tereza Pultarova published 29 September 22 The James Webb Space Telescope and its older counterpart Hubble photographed the impact of NASA's asteroid-smashing DART probe into the space rock Dimorphos on Monday (Sept. 26).
Update: SpaceX, NASA studying possible reboost mission to Hubble Space Telescope By Mike Wall published 29 September 22 NASA, SpaceX and Hubble officials will hold a press conference today (Sept. 29) to discuss "potential commercial space opportunities for NASA science missions," and you can listen live.
