(Phys.org) —Two astrophysics, Carlo Rovelli and Francesca Vidotto, have uploaded a paper to the preprint server arXiv in which they suggest that a structure known as a Planck star exists at the center of black holes, rather ...
Only the two Voyager spacecraft have ever been there, and it took than more than 30 years of supersonic travel. It lies well past the orbit of Pluto, through the rocky Kuiper belt, and on for four times that distance. This ...
Astronomy
Oct 31, 2020
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1186
NASA's New Horizons spacecraft is back "awake" and being prepared for the farthest planetary encounter in history – a New Year's Day 2019 flyby of the Kuiper Belt object nicknamed Ultima Thule.
Space Exploration
Jun 6, 2018
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769
The scientific collaborations LIGO and Virgo have detected gravitational waves from the fusion of two black holes, inaugurating a new era in the study of the cosmos. But what if those ripples of space-time were not produced ...
Astronomy
Jun 12, 2018
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NASA's New Horizons spacecraft recently turned its telescopic camera toward a field of stars, snapped an image – and made history.
Space Exploration
Feb 9, 2018
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2150
In 2019, the Event Horizon Telescope Collaboration delivered the first image of a black hole, revealing M87*—the supermassive object in the center of the M87 galaxy. The team has now used the lessons learned last year to ...
Astronomy
Sep 23, 2020
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5846
The world is finally about to see a black hole—not an artist's impression or a computer-generated likeness, but the real thing.
Astronomy
Apr 10, 2019
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It's a long way out to the dwarf planet Pluto. So, just how fast could we get there?
Space Exploration
Mar 10, 2015
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66
Most people think of black holes as giant vacuum cleaners sucking in everything that gets too close. But the supermassive black holes at the centers of galaxies are more like cosmic engines, converting energy from infalling ...
Astronomy
Dec 3, 2015
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15260
NASA's New Horizons spacecraft took this stunning image of Pluto only a few minutes after closest approach on July 14, 2015. The image was obtained at a high phase angle -that is, with the sun on the other side of Pluto, ...
Space Exploration
Jun 4, 2016
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1168
