"We're seeing what could be described as an energetic tug-of-war inside the black hole's accretion flow."
When stars at least thirty times the mass of our Sun reach the end of their lives, astronomers had assumed they simply winked out, collapsing silently into black holes under the force of gravity from which not even light can escape. No bright supernova explosion, no spectacular death throes, just a quiet gravitational implosion.
The findings potentially solve the paradox of how liquid water seems to have persisted on Mars even when the climate grew too cold.
There is a fundamental tension in space exploration that has created ongoing debates for decades. By creating the infrastructure we need to explore other worlds, we damage them in some way, making them either less scientifically interesting or less “pristine,” which some would argue, in itself, is a bad thing. A new paper available in JGR Planets, from Francisca Paiva, a physicist at Instituto Superior Técnico, and Silvio Sinibaldi, the European Space Agency’s (ESA’s) planetary protection officer, argues that, in the Moon’s case at least, the problem is even worse than we originally thought.
Some newly found stars in a small galaxy called Sextans A are forming without some of the usual "ingredients," raising questions about how the early universe evolved.
What exists beneath the surface of Jupiter’s icy moon, Callisto? This is what a recent study accepted by *The Planetary Science Journal* hopes to address as a team of researchers investigated the subsurface composition of Callisto, which is Jupiter’s outermost Galilean satellite. This study has the potential to help scientists better understand the interior composition of Callisto, which is hypothesized to possess a subsurface liquid water ocean, and develop new techniques for exploring planetary subsurface environments.
NASA is returning four astronauts to Earth early from the International Space Station due to a medical concern with one of the Crew-11 astronauts. Here's the latest news.
Schmidt Sciences has unveiled details on four ambitious observatories to monitor the dynamic cosmos, with data from all four expected by 2029.
Greenland's mountains greatly affect local climate patterns.
Crew-11’s early return could be visible across the U.S. Wednesday night.
There may not be as nearly as many small galaxies in the early universe as astronomers predict there should be, which has big implications for the story of how our universe grew up.
SpaceX's Crew-11 astronauts will leave the International Space Station today (Jan. 14) in the first-ever medical evacuation from the orbiting lab, and you can watch it live.
This year offers an interesting mix of celestial coverups: a total solar eclipse viewable from Spain and two deep lunar
eclipses (one total, one not quite) visible across North America. The fourth, an annular solar eclipse, will be confined to the bottom of the world.
File: A SpaceX Falcon 9 rocket stands at Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station ahead of the planned launch of the Starlink 6-71 mission. Image: Spaceflight Now
SpaceX aims to launch a Falcon 9 rocket from Cape Canaveral Space Force Station on Wednesday afternoon, but faces difficult weather.
Galaxy clusters aren’t supposed to be scorching hot when they’re young. Like infants, they should need time to mature before developing their full characteristics. Astronomers using the Atacama Large Millimetre/submillimetre Array have just discovered that nature doesn’t always follow the same script.
Galaxies don’t always die dramatically. Sometimes they fade away, slowly strangled by the very black holes at their hearts. Astronomers using the James Webb Space Telescope and the Atacama Large Millimetre Array have caught one such death in progress, revealing a surprisingly subtle method of galactic murder.
Newborn stars aren’t gentle. They blast ionised gas into space, carving luminous paths through the darkness. NASA’s Hubble Space Telescope has just captured fresh images of one of these stellar outbursts, showing bright ribbons of pink and green gas stretching across 32 light years of space.
The GPS III Space Vehicle 09, the ninth GPS III spacecraft, is pictured traveling by road from Lockheed Martin facilities in Denver, CO, to Florida’s Space Coast. Image: Lockheed Martin
The next Global Positioning System satellite is switching from a United Launch Alliance Vulcan rocket to a SpaceX Falcon 9, a spokesperson for the U.S. Space Force’s Space Systems Command System Delta 80 said Tuesday.
NASA and the U.S. Department of Energy have firmed up their commitment to develop a nuclear reactor for use on the surface of the moon by 2030.
The four astronauts of SpaceX's Crew-11 mission will leave the International Space Station on Jan. 14, in the first-ever medical evacuation from the orbital lab. Here are the details.
Two new smallsat missions, named SPARCS and BlackCAT, promise to examine stellar flares and explosions in the early universe.
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