Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
2 old open star clusters merging in the Milky Way
An astronomer in Brazil has looked toward a known open star cluster and found 2 old open star clusters, merging in our Milky Way galaxy.
October 7, 2021
Where are the water worlds? New tool to find out
Where are the water worlds? Since water means life (as we know it), scientists studying exoplanets want to know. A new tool might help find them.
October 6, 2021
Super-Earth, mini-Neptune or sub-Neptune?
The exoplanet community hasn't yet converged on the best name for exoplanets that are 1.7 - 3.5 Earth-radii. Super-Earth, mini-Neptune, sub-Neptune?
October 6, 2021
Hello, Mercury! BepiColombo speeds by
Hello, Mercury! BepiColombo is a Mercury mission, due to arrive in earnest in December, 2025. Along the way, it needs help to get there.
October 2, 2021
Circumtriple planet suspected: a planet orbiting 3 stars
Scientists believe a planet (or more) orbits the triple star system GW Orionis. This would be the first circumtriple planet discovered.
October 1, 2021
Landsat: 5 decades of imagery and data
The Landsat program, the longest space-based record of Earth’s surface, helps policy makers make decisions about our resources and environment.
October 1, 2021
Daylight fireball tracked to Earth
Scientists tracked a daylight fireball to Earth using images from video of the event that occurred over countries near the Adriatic Sea.
September 30, 2021
Great Red Spot winds accelerating on Jupiter
Data from the Hubble Space Telescope shows that the Great Red Spot winds have been increasing on Jupiter over the past decade.
September 30, 2021
Mushballs explain missing ammonia on ice giants
Giant slushy hailstones called mushballs explain missing ammonia in the atmospheres of Uranus and Neptune. They carry the gas down far too deep to be detected.
September 29, 2021
Satellites versus stars: Which will dominate the sky?
In the battle of satellites versus stars, the motion of constellations of satellites will draw the eye and drown out the quiet background stars.
September 28, 2021
