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New Horizons’ discoveries keep coming
New ScienceCast video on recent results from New Horizons spacecraft data. Landslides on Charon. Possible snow on Pluto. Plus a preview of New Horizons' next target.
September 30, 2017
Space visionaries boost Pluto lander
At a NASA symposium this week, space scientists and engineers presented an exciting new concept for a lander that would explore Pluto by "hopping" across its surface.
September 29, 2017
Is the Milky Way a normal galaxy?
Astronomers assume our Milky Way galaxy is typical. They use our knowledge of it to leapfrog out to understanding the rest of the universe. But is the Milky Way typical?
September 28, 2017
Black holes with ravenous appetites
Both Type I and Type II active galaxies have central, supermassive black holes, which consume the galaxies from within. But new work suggests the black holes in Type Is eat faster.
September 27, 2017
How fast is our universe expanding?
Here's a great New ScienceCast video about the controversial Hubble Constant. It's the key to knowing the age of our universe and much more.
September 26, 2017
Fast radio bursts firing every second?
New theoretical work indicates at least 1 fast radio burst, or FRB, going off somewhere each second. It contradicts the idea that FRBs might be evidence of an alien technology.
September 25, 2017
Sun photobombed Mars encounter with comet Siding Spring
Comet Siding Spring swept closer to Mars than any known comet in recorded history, creating the largest-ever-known meteor shower. But the sun got in on the act.
September 24, 2017
How well can seeds survive in space?
If humans want to live on Mars, we're going to need to grow food. How well can seeds survive harsh, non-Earth conditions?
September 23, 2017
Astronomers find strange, comet-like double asteroid
Comets are loose collections of ice and dust, sometimes with long tails. Asteroids are more rocky or metallic. Now astronomers have found a comet-like double asteroid.
September 23, 2017
Earth will give this spacecraft a gravity boost today
OSIRIS-REx - bound for a 2018 encounter with asteroid Bennu - will sweep in close to Earth on Friday. It'll be closest today just before 16:52 UTC (12:52 p.m. EDT).
September 22, 2017
