If all goes according to plan, the James Webb Space Telescope, launched on Christmas Day 2021 after years of delays, will usher in a new era of astronomy.
The $10 billion James Webb Space Telescope unfolded its huge sunshield on Friday (Dec. 31), pulling the five-layer structure out by sequentially deploying two booms.
The closer we look at the universe, the more beautiful and baffling it becomes. Here are the 10 most epic space structures discovered in 2021.
The Standard Model explains the physics of how the world works. But in 2021, physicists started probing fundamental gaps in this long-established concept.
During this very eventful year, two nations joined the Mars club, a robot plied Red Planet skies for the first time ever and humanity kicked off an ambitious interplanetary sample-return campaign.
A new pre-print study claims to have quantum entangled a tardigrade with two superconductor qubits, though experts are skeptical.
NASA's James Webb Space Telescope is three days into the deployment of its massive sunshield — and it still has about three days to go.
Thanks to images from a robotic Earth telescope, you can now watch the James Webb Space Telescope travel through space.
The James Webb Space Telescope has unwrapped its sunshield, crossing another important item off of its lengthy and risky deployment to-do list.
Nibiru has been linked to NASA, and is also sometimes referred to or confused with Planet X, another supposed world for which there is no evidence.
After an asteroid struck at the end of the Cretaceous period, debris from wildfires filled the atmosphere and blocked sunlight across Earth, causing ecosystem collapse and extinctions.
Comets heat up very quickly as they approach the sun, causing the icy bodies to glow green, but never in the tails trailing behind them. A new study may finally reveal why.
China has formally approved three missions targeting the south pole of the moon, with the first to launch around 2024.
As COVID-19 infection rates rise once again, the leaders of the American Astronomical Society (AAS) have canceled the major conference scheduled for early January.
The magnetosphere of Jupiter's moon Ganymede sounds like a dial-up modem in a newly-released audio clip from NASA.
The James Webb Space Telescope is one step closer to finishing the deployment of its massive sunshield.