The Beast’s environment: How a supermassive black hole shapes the fate of the Milky Way
At the center of our galaxy, hidden behind dense clouds of gas and dust, the black hole Sagittarius A* rotates rapidly, dragging space-time with it
Seven planets align on February 28: Time, where to watch in the U.S. and what you need to know
Mercury will join Mars, Jupiter, Uranus, Neptune, Venus and Saturn in the night sky in a phenomenon that will not be seen again until 2040
Jupiter’s moon Europa may have less oxygen than expected, a finding that might put a damper on life
More work is needed to confirm these findings, which are contrary to earlier telescope observations of condensed oxygen in Europa’s ice, indicating a higher oxygen concentration
Europa, one of Jupiter’s moons, has water, CO₂ and fascinating possibilities
The James Webb telescope just detected carbon dioxide on this Galilean satellite, one of the nearby worlds studied for extraterrestrial life
A guide for aliens: how to interpret the messages sent from Earth in the Pioneer and Voyager space probes
Four planetary probes were launched in the 1970s, carrying information about Earth. This was in case – in the very distant future – they were to fall into the hands of an extraterrestrial civilization
John Grunsfeld, astronaut: ‘I didn’t think there were aliens here until Donald Trump became president’
The former NASA chief scientist has left the planet five times, and has come to spend more than eight hours floating alone in space
European spacecraft rockets toward Jupiter and its icy moons
AP|
Dubbed Juice, the robotic explorer set off on an eight-year journey Friday from French Guiana in South America, launching atop an Ariane rocket