Watch NASA’s new Mars helicopter rotor break the speed of sound (video)
NASA is testing the limits of future Mars aircraft as it works to develop a next-generation fleet of helicopters that will fly through the thin atmosphere of the Red Planet.
Day May 17, 2026
Venus and a slender crescent moon steal the show after sunset on May 18
Look west after sunset to catch Venus shining beside a delicate crescent moon in the twilight sky.
SpaceX Dragon capsule delivers science and supplies to space station
A SpaceX Dragon cargo spacecraft delivered 6,500 pounds of science and supplies to the International Space Station on Sunday, May 17, 2026.
Watch an asteroid the size of a blue whale hurtle towards Earth live online May 18
The livestream will begin at 3:45 p.m. EDT on May 18, bringing near real time views of the asteroid from robotic telescopes in Italy, weather permitting.
Giant radio telescope sees Artemis 2 astronauts on Orion flying around the moon. ‘There are 4 people in those pixels.’
A giant radio telescope in West Virginia tracked Artemis 2’s Orion spacecraft around the moon for five days, gathering precise observations on its movements during the historic mission.