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Earthquakes rattle New Zealand. Tsunami warnings now lifted. Thousands return home.
Three very strong earthquakes in the ocean near New Zealand took place in less than 8 hours on Friday, local time. Tsunami warnings went out across the Pacific, including Hawaii, but have now been lifted.
March 4, 2021
Astronomers spy a nearby, blazing hot super-Earth
Most exoplanets orbiting close to their stars don't have atmospheres. But Gliese 486b - orbiting a red dwarf star only 24 light-years away - does. It's close enough to see well. Astronomers will be watching it!
March 4, 2021
Moon and star Antares morning of March 5, 2021
Let the moon show you Antares, a red supergiant star and the brightest star in the constellation Scorpius the Scorpion on the morning of March 5.
March 4, 2021
Watch ISS spacewalk March 5
On Friday, March 5, two astronauts will perform the 2nd in a pair of International Space Station spacewalks to ready the station for solar array upgrades. How to watch live.
March 4, 2021
Giant iceberg breaks off Brunt Ice Shelf in Antarctica
A giant iceberg, about twice the size of Chicago, broke off from Antartica's Brunt Ice Shelf in late February 2021.
March 4, 2021
Earlier spring snowmelt in Alps threatens microbes in soil
A new study suggests that spring snowmelt in the Alps is occurring earlier in the year, and the earlier warming - due to climate change - threatens vitally important microbial communities in alpine soils.
March 4, 2021
Photographs of historic Mars and Pleiades conjunction
On March 3, 2021, the red planet Mars and Pleiades star cluster in Taurus will appear close together on the sky's dome. The two won't get this close again until 2038! See photos of the big event.
March 3, 2021
Closest Mars-Pleiades conjunction until 2038
This year - on March 3, 2021 - the red planet Mars and the Pleiades star cluster - also known as the Seven Sisters - stage their closest conjunction on the sky's dome until February 4, 2038.
March 3, 2021
Asteroid dust in Chicxulub crater seals deal on dino extinction
Scientists examined rock cores taken from the Chicxulub crater in Mexico, site of the asteroid impact that triggered dinosaur extinction, and found iridium, a telltale sign of asteroids.
March 3, 2021
Gulf Stream at its weakest in over 1,000 years
A new study suggests that the Gulf Stream - an Atlantic Ocean current that plays a large role in shaping Earth’s weather patterns - is weaker now than at any point in the last 1,000 years.
March 3, 2021
