All About Everything

Comet Leonard will light up the sky this month — here's how to see it

Since its discovery, the comet has been approaching both the sun and Earth but has been a very dim object. Most comets remain too faint for amateur telescopes to catch, but for a short while in December, Comet Leonard should rise out of the ordinary.

Private habitats, not just the International Space Station, may be needed to get astronauts to Mars: report

Private space stations may end up being a key stepping stone on humanity's path to Mars. NASA aims to put astronauts on the moon in this decade and on the Red Planet in the 2030s. To help make these ambitious goals a reality, the agency is performing ...

SpaceX's Starlink internet satellites forced to dodge Russian anti-satellite test debris

Companies and governmental organizations including NASA, the European Space Agency (ESA), and Earth-observation company Planet, issued statements condemning Russia's act as irresponsible and malicious. Until now, SpaceX ...

Arecibo Observatory: A year after telescope's collapse, an icon gets continuing cleanup and a new documentary

A year after the collapse of an iconic radio telescope tucked away in a natural sinkhole, scientists and Puerto Ricans are still reeling from the loss of a decades-old observatory. Arecibo Observatory's radio telescope was instantly recognizable, ...

NASA astronauts will spacewalk on Thursday after space debris alert

NASA astronauts Thomas Marshburn and Kayla Barron were due to begin a spacewalk to replace an antenna system early Tuesday morning; the spacewalk was set to formally begin at 7:10 a.m. EST (1210 GMT) when the two crewmembers set their suits to run on ...

Enigmatic footprints, once thought to belong to a bear, linked to unknown human ancestor

CNN

CNN

A set of footprints a mile away, at a place called Laetoli site A, were attributed to a young bear walking upright on its hind legs because they were so different from the tracks left by Australopithecus afarensis.

Prints Long Thought to Be Bear Tracks May Have Been Made by Human Ancestor

New research published in the journal Nature suggests that the prints, discovered in Tanzania in 1976, were left by an unidentified hominin, or early human ancestor, more than 3.6 million years ago.

Living robots made in a lab have found a new way to self-replicate, researchers say

NPR

NPR

Scientists say they've witnessed a never-before-seen type of replication in organic robots created in the lab using frog cells. Among other things, the findings could have implications for regenerative medicine. The discovery involves a xenobot – a ...

This Dinosaur Found in Chile Had a Battle Ax for a Tail

While ankylosaurs are already known for their armor and club tails, this specimen from South America had a unique way of fighting predators.

Researchers discover skull of deadly, fast swordfish-like reptile with a 3-foot-long skull

USA TODAY

USA TODAY

A team of international researchers announced the discovery of a marine reptile closely resembling a swordfish with a 3-foot-long skull that existed over 100 million years ago. The preserved skull is of the ichthyosaur, which means "fish lizard.