Still in testing mode, the U.S. Air Force Space Fence on Kwajalein Atoll detected India’s March 27 anti-satellite test and issued a break-up alert.
The SABRE air-breathing rocket engine is ready for a major round of testing in the next 18 months after passing a preliminary design review by the European Space Agency.
An asteroid the size of a house gave Earth a close shave today (April 18), passing nearer to our planet than any other space rock will for the rest of this year — that is, as far as we know.
Today, Northrop Grumman's Antares rocket will launch from NASA's Wallops Flight Facility in Virginia. Check for it in the afternoon sky.
Here's a guide to the major astronomical events of the next year, as well as space launches and milestones for spacecraft already in travel.
Einstein's theory of relativity is super important in the new "Avengers: Endgame" teaser trailer and at the end of "Captain Marvel."