What is a black hole? In an article that has just appeared in the journal Nature Astronomy, LMU philosopher Erik Curiel shows that physicists use different definitions of the concept, depending on their own particular fields ...
Astronomy
Feb 14, 2019
199
1790
The chance that ESA's Solar Orbiter spacecraft will encounter space debris during its upcoming Earth flyby is very, very low. However, the risk is not zero and is greater than any other flyby ESA has performed. That there ...
Space Exploration
Nov 29, 2021
0
205
A University of Hawaiʻi Institute for Astronomy (IfA) astronomer has revealed critical new findings linked to a large asteroid expected to pass extremely close to Earth. Dave Tholen and collaborators have announced the detection ...
Astronomy
Oct 27, 2020
9
1568
Pluto's day is 6.4 Earth days long. The images were taken by the Long Range Reconnaissance Imager (LORRI) and the Ralph/Multispectral Visible Imaging Camera as the distance between New Horizons and Pluto decreased from 5 ...
Space Exploration
Nov 20, 2015
4
671
Astronomers from UCLA's Galactic Center Orbits Initiative have discovered a new class of bizarre objects at the center of our galaxy, not far from the supermassive black hole called Sagittarius A*. They published their research ...
Astronomy
Jan 15, 2020
87
4505
NASA's New Horizons spacecraft has sent back the first in a series of the sharpest views of Pluto it obtained during its July flyby – and the best close-ups of Pluto that humans may see for decades.
Space Exploration
Dec 4, 2015
4
5805
When I was younger I decided to learn Greek. I learned the letter-sound correspondences and could say the words—the sounds, that is. But although I could and still can decode these words, I can't actually read Greek because ...
Education
Nov 12, 2019
0
10
Now is the best time to get a glimpse of Comet C/2021 A1, better known as Comet Leonard. It's named for its discoverer, Gregory Leonard, a senior research specialist at the University of Arizona Lunar and Planetary Laboratory.
Astronomy
Dec 14, 2021
0
1042
A Mercury-bound spacecraft swooped past Earth on Friday, tweaking its roundabout path to the solar system's smallest and innermost planet.
Space Exploration
Apr 10, 2020
11
1712
A relatively large near-Earth asteroid discovered nearly three years ago will fly safely past Earth on April 19 at a distance of about 1.1 million miles (1.8 million kilometers), or about 4.6 times the distance from Earth ...
Space Exploration
Apr 7, 2017
1
800
