Our galaxy hosts supernovae explosions a few times every century, and yet it's been hundreds of years since the last observable one. New research explains why: It's a combination of dust, distance and dumb luck.
Astronomy
Jan 7, 2021
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94
Astronomers have used NASA's Chandra X-ray Observatory to record material blasting away from the site of an exploded star at speeds faster than 20 million miles per hour. This is about 25,000 times faster than the speed of ...
Astronomy
Aug 19, 2020
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5845
Mission accomplished: the Planetary Society announced Wednesday that its LightSail 2 spacecraft, which was launched last month, had successfully raised its orbit using only the power of photons from the Sun.
Space Exploration
Aug 1, 2019
7
366
Years of computer simulations. Countless ground tests. They've all led up to now. The Planetary Society's crowdfunded LightSail 2 spacecraft is successfully raising its orbit solely on the power of sunlight.
Space Exploration
Aug 1, 2019
0
251
On the evening of Thursday, Nov. 15, NASA's Kepler space telescope received its final set of commands to disconnect communications with Earth. The "goodnight" commands finalize the spacecraft's transition into retirement, ...
Astronomy
Nov 19, 2018
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14
A new study argues that the explosion that Johannes Kepler observed in 1604 was caused by a merger of two stellar residues.
Astronomy
Aug 1, 2018
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583
For countless generations, human beings have looked out at the night sky and wondered if they were alone in the universe. With the discovery of other planets in our solar system, the true extent of the Milky Way galaxy, and ...
Astronomy
May 25, 2015
0
271
(Phys.org) —A team of researchers led by the man, Thomas Hales, who came up with written proof of the Kepler conjecture is now reporting that they have constructed a formal proof of the conjecture, which implies the use ...
(Phys.org) —Supernovas are often thought of as the tremendous explosions that mark the ends of massive stars' lives. While this is true, not all supernovas occur in this fashion. A common supernova class, called Type Ia, ...
Astronomy
Jun 4, 2014
0
0
The novel material graphene and its technological applications are studied at the Vienna University of Technology. Now scientists succeeded in combining graphene light detectors with semiconductor chips.
Nanomaterials
Sep 16, 2013
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