A team led by University of Washington astronomers has discovered the fastest-ever spinning asteroid with a diameter over half a kilometer. The asteroid — found while analyzing data from the NSF–DOE Vera C. Rubin Observatory and dubbed 2025 MN45 — is 0.4 miles in diameter and completes a full rotation every 1.88 minutes. The study […]
A powerful transmitter in remote Alaska sent long wavelength radio signals into space Tuesday with the purpose of bouncing them off an asteroid to learn about its interior. The asteroid, 2010 XC15, is estimated to be about 500 feet across and is passing by Earth at two lunar distances, which is twice the distance between […]
An experiment to bounce a radio signal off an asteroid on Dec. 27 will serve as a test for probing a larger asteroid that in 2029 will pass closer to Earth than the many geostationary satellites that orbit our planet. The High-frequency Active Auroral Research Program research site in Gakona will transmit radio signals to asteroid […]
The 6+ miles-wide asteroid that struck Earth 66 million years ago wiping out nearly all the dinosaurs and roughly three-quarters of the planet’s plant and animal species also triggered a megatsunami with mile-high waves that new research confirms its global impact. A new study, published this week in the journal AGU Advances, presents the first […]