What if there is more than one cosmological agent for dark energy? This mixture would have strange effects in our universe, making it potentially detectable with upcoming surveys.
A coronavirus variant identified in South Africa may not be as vulnerable to COVID-19 vaccines as other strains, some scientists say.
Mars' Valles Marineris is nearly 10 times as long as the Grand Canyon and three times as deep, but nobody knows how it formed.
The Quadrantid meteor shower is peaking, and skywatchers in North America have a good chance of seeing the tail end of the show tonight.
Dozens of Roman Army camps have been discovered in Spain, revealing more about one of most infamous Roman conflicts.
Archaeologists claim that they have identified the deadly dance floor where John the Baptist — a preacher who foretold the coming of Jesus — was sentenced to death around A.D. 29.
The big galaxy at the core of the cluster Abell 2261 should harbor a supermassive black hole that weighs as much as 3 billion to 100 billion suns. But astronomers can't find it.
Medical discoveries dominated the news in 2020, but even under pandemic conditions, astronomers discovered amazing things in space in 2020.
To protect endangered black-footed ferrets from COVID-19, scientists in Colorado have injected a major captive breeding population with an experimental vaccine.
From a colossal explosion to mystery burps deciphered, here were some of the top stories in physics in 2020.
Despite the difficult year, many archaeological and historical discoveries came to light, including a sprawling geoglyph in Peru, a trove of mummies, the tomb of the legendary Romulus and more.
Invading pythons are causing problems for the native wildlife in Florida. Should people start eating them and are they even safe to eat?
From record wildfires to a bumper crop of hurricanes to melting poles, here are some of the biggest signs in 2020 that climate change is speeding up.
This year saw a possible first detection of solar axions, and the possible death of the sterile neutrino.