MIT aerospace engineers have found that greenhouse gas emissions are changing the environment of near-Earth space in ways that, over...
Stargazers in North and South America will be able to view a red-colored “blood moon” starting Thursday night in the...
At least two mass extinction events in Earth’s history were likely caused by the “devastating” effects of nearby supernova explosions,...
Not long to go now: After more than nine months on the International Space Station, two astronauts are a step...
Blazars are active galaxies that emit narrow jets of ionized matter from their centers, aimed towards Earth. Depending on properties...
Gravitational lensing often evokes images of a cosmic funhouse mirror: duplicated galaxies, dramatic arcs and distorted shapes. But the web-like,...
Powering spacecraft with solar energy may not seem like a challenge, given how intense the Sun’s light can feel on...
Life may not have begun with a dramatic lightning strike into the ocean but from many smaller “microlightning” exchanges among...
Astrophysicists have once again enriched our knowledge of the cosmos with a new discovery: two small planets orbiting TOI-1453. Located...
On the way to investigate the scene of a historic asteroid collision, a European spacecraft swung by Mars and captured...
When we observe distant celestial objects, there is a possible catch: Is that star I am observing really as reddish...
More than 3 billion years ago, Mars intermittently had liquid water on its surface. After the planet lost much of...
