Space station telescope sees X-ray hot spots merge on supermagnetic star corpse

For the first time, a powerful NASA telescope aboard the International Space Station observed merging “hot spots” on a weird star, known as a magnetar. The telescope is called the Neutron star Interior Composition Explorer (NICER), and seeks to understand more about the extreme conditions present in super-dense, city-sized neutron stars and their variants. (Magnetars, … Read more

Extremely Hot, Humid Weather Could Kill a Person Far More Easily Than We Thought

The human body might not cope with nearly as much heat and humidity as theory predicts. One of the first studies to directly assess humid heat stress among young people has found that when humidity is at an absolute max, the upper limit of human adaptability is just 31°C (87 °F).   That’s four degrees … Read more

Metal clouds and liquid gems spotted in the atmosphere of hot Jupiter WASP-121 b

An artist’s impression of the hot Jupiter exoplanet WASP-121 b. In a new study, researchers explored the exoplanet’s nightside.  (Image credit: Patricia Klein and MPIA) Imagine a world where the clouds are made of metal and liquid rubies and sapphires rain down from the sky. A new study shows that, on the hot Jupiter exoplanet … Read more

This Extremely Extreme Exoplanet Has Metal Vapor Clouds And Rains Liquid Jewels

A giant exoplanet 855 light-years away is so extreme, it has clouds of vaporized metals and rains liquid rubies and sapphires. That’s the conclusion astronomers have reached after probing its atmosphere – the most detailed such analysis to date, revealing for the first time the conditions and dynamics of the exoplanet’s permanent night side.   … Read more

White dwarf stars: Astronomers find unusually hot stars covered in ash

An unusual pair of stars may have been formed in a rare type of stellar merger when a helium star eats another one made of carbon and oxygen Space 15 February 2022 By Leah Crane Artist’s impression of a merger between two white dwarf stars Nicole Reindl, University of Potsdam Two strange stars that researchers … Read more

NASA hopes James Webb Space Telescope will unlock secrets of ‘super-Earths’ and hot rocky worlds

Some of the first James Webb Space Telescope investigations will focus on a variety of planet very different from what’s found in our cosmic neighborhood. Once Webb finishes its six-month commissioning period around June, it is scheduled to start a series of studies in exoplanets. One such project will study 11 “super-Earths,” which are worlds … Read more

The Atmosphere of This Extreme Exoplanet Has an Intriguing Similarity to Earth

Astronomers have just peered into the atmosphere of one of the most extreme exoplanets ever discovered. Although it’s absolutely not habitable (at least as we understand it), the exoplanet WASP-189b is the first in which scientists have been able to probe distinct atmospheric layers, each with their own chemical compositions and characteristics.   “In the … Read more

For The First Time, Astronomers Detect Rugby-Ball Shape of a Deformed Exoplanet

Beyond the Solar System, out there in the wider galaxy, a very strange subset of exoplanets exists. Called hot Jupiters, these are majorly clingy – hugging so close to their host stars, they’re not just intensely hot, but also likely warped by gravitational forces.   Now, for the first time, astronomers have actually detected the … Read more

Astronomers Detect Water Vapor in The Atmosphere of a ‘Super Neptune’ Exoplanet

New Year’s Day comes around once every 47.5 hours on the roughly Neptune-sized exoplanet TOI 674b, which makes it something of a rare creature.  In spite of years of hunting, surprisingly few middle-sized gas giants have ever been seen with orbits shorter than a few days in length, creating what astronomers refer to as a … Read more