All About Everything

100 years ago, Edwin Hubble proved our Milky Way galaxy isn't alone

Somewhere in between, humans realized the universe is much larger than our Milky Way — that the spiral nebulas visible through telescopes were, in fact, other galaxies in their own right. The scale of the cosmos had expanded dramatically virtually ...

Feeding supermassive black holes may have ended the cosmic 'dark ages' billions of years ago

The intense brightening and dimming of this quasar was observed by NASA's NuSTAR (Nuclear Spectroscopic Telescope ARray) X-ray space telescope. NuSTAR's observations were then matched up with data about the same feeding supermassive black hole from NASA's ...

Venus and Saturn take a sunset stroll tonight. Here's how to see it

Venus and Saturn will appear extraordinarily close together in the night sky tonight during a celestial event known as a conjunction. To see Venus and Saturn, look to the southwest immediately as the sun sets. Venus will be bright an unmistakable, ...

Europe's new Ariane 6 heavy-lift rocket set for 2nd launch in February

"We have had a very detailed analysis of the maiden flight and obviously discovered a few anomalies and things that need to be corrected." Comments (0). When you purchase through links on our site, we may earn an affiliate commission.

Extinct Human Species Lived in a Brutal Desert, Study Finds

The New York Times

The New York Times

A million years ago, a species known as Homo erectus most likely survived in an arid desert with no trees. Share full article.

Mars's two distinct hemispheres caused by mantle convection not giant impacts, study claims

Illustration of convection origin for Mars's hemispheric dichotomy, based upon seismic wave attenuation from marsquakes. Credit: Sun and Tkalčić, 2024. Mars has northern and southern hemispheres like Earth, but their ...

Why Is Every Human Being Riddled With Genetic Errors?

Smithsonian

Smithsonian

You began when egg and sperm met, and the DNA from your biological parents teamed up. Your first cell began copying its newly melded genome and dividing to build a body. And almost immediately, genetic ...

Hubble tracks down a 'blue lurker' among stars

Evolution of a "Blue Lurker" Star in a Triple System. Panel 1: A triple star system containing three sun-like stars. Two are very tightly orbiting. The third star has a much wider orbit. Panel 2: The close stellar pair spiral together and merge to form ...

WIRED

See 6 Planets Align on January 21

WIRED

On January 21, six planets—Venus, Mars, Jupiter, Saturn, Uranus, and Neptune—will be visible simultaneously in the sky, and their alignment will be easily visible from almost all parts of the globe.

Parade of planets this month will feature celestial bodies in alignment

ABC News

ABC News

Six planets will be in alignment for the rest of the month – four of which will be visible with the naked eye, Preston Dyches, public engagement specialist at the NASA Jet Propulsion Laboratory and host of NASA's "What's Up" skywatching series, told ABC ...