Our universe is expanding, but our two main ways to measure how fast this expansion is happening have resulted in different answers. For the past decade, astrophysicists have been gradually dividing into two camps: one that ...
Astronomy
Jun 30, 2021
70
4230
There's something going on beneath the surface of Jupiter's icy moon Europa. But what?
Space Exploration
Sep 23, 2016
6
1710
Grab your binoculars: A comet that has fascinated scientists for five years approaches its closest distance from Earth this week—and you might be able to catch a glimpse.
Astronomy
Jul 13, 2022
1
1012
The Earth‐moon system's history remains mysterious. Scientists believe the system formed when a Mars‐sized body collided with the proto‐Earth. Earth ended up being the larger daughter of this collision and retained ...
Astronomy
Jun 22, 2020
11
3529
The idea of terraforming Mars – aka "Earth's Twin" – is a fascinating idea. Between melting the polar ice caps, slowly creating an atmosphere, and then engineering the environment to have foliage, rivers, and standing ...
Space Exploration
Mar 10, 2017
21
1679
The Earth is unique in our solar system: It is the only terrestrial planet with a large amount of water and a relatively large moon, which stabilizes the Earth's axis. Both were essential for Earth to develop life. Planetologists ...
Astronomy
May 21, 2019
16
4494
The violent death throes of a nearby star so thoroughly disrupted its planetary system that the dead star left behind—known as a white dwarf—is sucking in debris from both the system's inner and outer reaches, UCLA astronomers ...
Astronomy
Jun 16, 2022
2
2950
Supercomputer simulations of galaxies have shown that Einstein's theory of General Relativity might not be the only way to explain how gravity works or how galaxies form.
Astronomy
Jul 8, 2019
38
6092
A team of theoretical physicists have discovered a strange structure in space-time that to an outside observer would look exactly like a black hole, but upon closer inspection would be anything but: they would be defects ...
Astronomy
May 15, 2023
3
506
The largest asteroid in more than a century will whiz safely past Earth on September 1 at a safe but unusually close distance of about 4.4 million miles (7 million kilometers), NASA said.
Space Exploration
Aug 30, 2017
5
1855
