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We are galaxy stuff
A new study - based on supercomputer simulations - reveals that each one of us may be made in part from matter that passes from one galaxy to another.
July 27, 2017
Gauging Arctic’s summer sea ice melt
This past winter, Arctic sea ice extent sank to a record low for the 3rd straight year. Now, NASA is looking at the summer melt season's impact on the Arctic's oldest, thickest sea ice.
July 27, 2017
Venus and the Pleiades before dawn
Venus - the brightest planet - is in the east before dawn now. Chirag Upreti caught Venus on July 22 over Acadia National Park in Maine. The dipper-shaped cluster above it is the Pleiades, or Seven Sisters.
July 27, 2017
Watch launch of new ISS crew July 28
Live launch coverage from Kazakhstan begins at 10:45 a.m. EDT (14:45 UTC). You can also watch the spacecraft dock with the ISS, starting at 5:15 p.m. EDT (21:15 UTC).
July 26, 2017
Moon and Mercury over Rome last night
The moon and Mercury - innermost planet of our solar system - had a great meeting these past hours. Here, Gianluca Masi of the Virtual Telescope Project presents some shots capturing this exclusive show, hanging over the skyline of Rome.
July 26, 2017
Close shave from an undetected asteroid
Whoosh! Astronomers discovered a small asteroid - now designated as asteroid 2017 OO1 - on July 23. That was 3 days after it passed 1/3 the moon's distance from Earth.
July 25, 2017
How many distant comets?
Mysterious long-period comets might be more common - and bigger - than astronomers thought. Studies like this one will help reveal what kind of hazard they might pose.
July 25, 2017
Haze on Saturn’s horizon
Spectacular recent image from the Cassini spacecraft, now in its Grand Finale year around Saturn, taken from just above Saturn's cloudtops, showing haze on the planet's horizon.
July 25, 2017
Moon, Mercury, Regulus rendezvous
You'll need a clear sky and an unobstructed western horizon to catch the planet Mercury with the star Regulus, so near the sunset glare. But the moon - and bright planet Jupiter - will help!
July 25, 2017
Gravitational anomaly seen in lab crystal
An exotic effect in particle physics, theorized to occur in immense gravitational fields — near a black hole, or in conditions just after the Big Bang — has been seen in laboratory crystal.
July 24, 2017
