(Phys.org) —An exploding star observed in 1604 by the German astronomer Johannes Kepler held a greater fraction of heavy elements than the sun, according to an analysis of X-ray observations from the Japan-led Suzaku satellite. ...
Astronomy
Apr 8, 2013
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(Phys.org)—In 1604, a new star appeared in the night sky that was much brighter than Jupiter and dimmed over several weeks. This event was witnessed by sky watchers including the famous astronomer Johannes Kepler. Centuries ...
Astronomy
Sep 11, 2012
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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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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
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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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(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
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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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Just how stars and black holes in the Universe are able to form from rotating matter is one of the big questions of astrophysics. What we do know is that magnetic fields figure prominently into the picture. However, our current ...
Astronomy
Aug 15, 2013
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Tessellation patterns that have fascinated mathematicians since Johannes Kepler worked out their systematics 400 years ago – and that more recently have caught the eye of both artists and crystallographers – can now be ...
Nanophysics
Aug 8, 2013
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