Actually identifying whether something is alive or just a weirdly shaped mineral is a huge challenge for astrobiologists looking for aliens. Extraterrestrial environments analogous to Earthly environments are usually limited to things like sulfuric acid caves. On Earth, these places are toxic to human life — yet they are capable of hosting a huge diversity of microbial life, including life forms that biologists still can’t identify.
A MYSTERIOUS effect at the start of the Big Bang propelled the universe and all within it through time, a new theory has claimed.
Scientists have found a “ghost” galaxy – roughly the same mass as our own, but entirely made up of dark matter. Dragonfly 44 is almost entirely made up of dark matter, the mysterious – and for now mostly theoretical – stuff that makes up 27 per cent of the universe but has never actually been seen. Though the galaxy is relatively nearby, at least in the scale of the universe, it is so dark that scientists completely missed it for decades.
Working with data from NASA’s MESSENGER spacecraft, which orbited Mercury from 2011 to 2015, scientists in the Astromaterials Research and Exploration Science Division have found that Mercury is extremely diverse.
In unprecedented observations made earlier this year, Rosetta unexpectedly captured a dramatic comet outburst that may have been triggered by a landslide.
A small team of researchers at Harvard University who are part of the Breakthrough Starshot team has been testing the likely damage to an interstellar spacecraft traveling at approximately one-fifth the speed of light as it makes its way to the Alpha Centauri star system. As they note in a paper describing their testing and results, which was uploaded to the arXiv preprint server, such damage could be catastrophic, but they believe they have a solution.
On Wednesday, a team of astronomers announced they had discovered a planet orbiting Proxima Centauri — and that the planet is rocky, has a mass similar to Earth’s and sits in the “goldilocks” zone where liquid water could exist on its surface.
Scientists are mulling a variety of ways to hunt for life on Saturn's icy, ocean-harboring moon Enceladus.
"As the sun disappears behind the moon the ground suddenly cools, just like at sunset," Giles Harrison, a meteorology professor at Reading, explained in a news release. "This means warm air stops rising from the ground, causing a drop in wind speed and a shift in its direction, as the slowing of the air by the Earth's surface changes."
Space boffins are set to announce they have discovered a planet orbiting Proxima Centauri – the closest neighbouring star to the Sun. The new so-called “exoplanet” is rumoured to be similar to Earth – and may even be habitable.
In addition to a planet's distance from its parent star, another factor may be key in determining its habitability — its internal temperature during its formative years.
Black holes that are smaller than a human hair may be hurtling through space — and they just might just solve the mystery of dark matter.
Future factories in space could be used to launch large structural sections to build space stations.
The flash of light had been identified as a supernova remnant, but new observations by North Carolina State University have shown it could not have been this particular star.
A new Mars rover is likely to be launched by NASA in 2020 with the aim to explore a region that may contain remains of ancient microbial life according to scientists.
On March 17, 2015, an interplanetary shock created by a coronal mass ejection triggered the greatest geomagnetic storm of the preceding decade.
If you look in enough places, eventually you’ll find something profoundly strange. That’s been a reliable rule of thumb through the history of science, and last year it proved dramatically true again for astronomer Tabetha Boyajian. While digging through data from NASA’s Kepler space telescope, which has been monitoring 150,000 stars for signs of orbiting planets, she realized that one of these things is not like the others.
Whitmire claims Planet Nine’s passage through a rock-laden area called the Kuiper Belt is responsible for the “extinction events.” Conspiracy theorists in the ’80s and ’90s previously claimed a red dwarf planet called Nibiru or Nemesis, which orbits too close to Earth every 36,000 years, was behind the events.
According to reports, astrophysicists plan to announce they've discovered an Earth-like planet orbiting our nearest neighboring star.
“I hope everyone has buckled their seatbelts because the outer solar system just got a lot weirder.” That’s what Michele Bannister, an astronomer at Queens University, Belfast tweeted on Monday. She was referring to the discovery of a TNO or trans-Neptunian object, something which sits beyond Neptune in the outer solar system.