Video still from a new animation, depicting a spinning whirlpool around the central, supermassive black hole of the famous quasar 3C 273. See the video.
The OSIRIS-REx spacecraft is scheduled to rendezvous with its targeted asteroid, Bennu, today at approximately 17:00 UTC (noon EST; translate UTC to your time). NASA will air a live event beginning 15 minutes prior to rendezvous. How to watch.
How habitable are the 7 Earth-sized exoplanets of the nearby star TRAPPIST-1? Updated climate models suggest some may be similar to Venus, but at least one world may have oceans like Earth. Read more.
Artist's concept showing a comparison of the 7 planets orbiting the relatively nearby star TRAPPIST-1. Image via NASA.
We heard on Sunday from several people who spotted the planet Mercury below Venus. Will you see the moon Tuesday morning? Probably, if you have a clear sky. Will you see it Wednesday morning? Maybe! Read more.
You'll see a true iridescent cloud when the sun is nearby. The colors will appear randomly distributed. Here's one with beams of light - crepuscular rays, or sunrays - appearing to shoot from it. Photo by Richard Kelley.
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