The big day is nearly here for the team behind NASA's Mars helicopter Ingenuity, who've spent six years developing the first aircraft to fly on the Red Planet.
NASA's next crew of astronauts are ready to strap into a SpaceX Dragon capsule and blast off into space.
China has selected a Russian science payload to fly on an upcoming mission to sample a near-Earth asteroid and later visit a main-belt comet.
The Lyrid meteor shower peaks on Thursday morning (April 22), the first good meteor shower in nearly four months, although a bright moon could interfere.
The first helicopter on Mars is once again ready to attempt an historic flight on another world.
SpaceX has fired up the rocket that will ferry its next crew of astronauts to the International Space Station next week.
NASA's experimental Mars helicopter Ingenuity nailed a crucial spin test after the first try ended abruptly, delaying the chopper's groundbreaking flight attempt.
SpaceX's Crew-2 mission will launch to the International Space Station on April 22. See photos of the crewmembers and their preparations for launch.
The Ingenuity helicopter's first flight on Mars has been delayed, but NASA's Red Planet teams are staying busy with the larger Perseverance mission.
New Horizons is about to reach some very rarefied space, but don't expect the NASA probe to rest on its considerable laurels.
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