The most famous comet of all is headed back toward Earth. Halley's comet reached aphelion—its farthest point from the sun—on Dec. 8, at which point it began its long journey back to the sun.
Planetary Sciences
Dec 12, 2023
0
891
Astrophysicists Szabolcs Marka at Columbia University and Imre Bartos at the University of Florida, have identified a violent collision of two neutron stars 4.6 billion years ago as the likely source of some of the most coveted ...
Astronomy
May 2, 2019
28
2656
In clusters of galaxies there is a fraction of stars which wander off into intergalactic space because they are pulled out by huge tidal forces generated between the galaxies in the cluster. The light emitted by these stars ...
Astronomy
Dec 2, 2022
3
1838
A team of researchers at the University of Warsaw has created the most accurate 3-D model of the Milky Way Galaxy to date. In their paper published in the journal Science, the group explains how they used measurements from ...
Astronomers have caught a black hole hurling hot material into space at close to the speed of light. This flare-up was captured in a new movie from NASA's Chandra X-ray Observatory.
Astronomy
May 29, 2020
1
4270
Bright lights, big city.
Social Sciences
Mar 26, 2021
1
466
Talk about a rude awakening. Brood X cicadas are coming of age in world that is drastically altered from the one their ancestors knew.
Plants & Animals
May 10, 2021
2
494
Every season has its characteristic star constellations in the night sky. Orion—one of the most recognizable—is distinctly visible on crisp, clear winter nights in the northern hemisphere. The constellation is easy to ...
Astronomy
Jan 14, 2020
1
2290
The first results from the James Webb Space Telescope have hinted at galaxies so early and so massive that they are in tension with our understanding of the formation of structure in the universe. Various explanations have ...
Astronomy
May 17, 2023
31
708
Here's something we don't see very often: an Earth-grazing meteoroid.
Astronomy
Sep 29, 2020
2
1742
