The Arctic is one of the fastest-warming places on the planet. As temperatures rise, the perpetually frozen layer of soil, called permafrost, begins to thaw, releasing methane and other greenhouse gases into the atmosphere. These emissions can accelerate future warming — but to understand to what extent, we need to know how much may be ...
NASA’s Kepler spacecraft was designed to find exoplanets by looking for stars that dim as a planet crosses the star’s face. Fortuitously, the same design makes it ideal for spotting other astronomical transients — objects that brighten or dim over time. A new search of Kepler archival data has uncovered an unusual super-outburst from a ...
Scientists at NASA have discovered a planet that could harbor life. The discovery, made by the Transiting Exoplanet Survey Satellite (TESS), revealed a planet called TOI 700 d located about 100 light-years away, orbiting a red dwarf star that has a mass equivalent to 40 percent of our Sun. It is located in the Goldilocks ...
An international team of scientists led by the University of Birmingham adopted the novel approach of applying the forensic characterization of a single ancient, bright star called ν Indi as a probe of the history of the Milky Way Galaxy. Stars carry “fossilized records” of their histories and hence the environments in which they formed. ...
“Super-Puffs” may sound like a new breakfast cereal. But it’s actually the nickname for a unique and rare class of young exoplanets that have the density of cotton candy. Nothing else like them exists in our solar system. New data from NASA’s Hubble Space Telescope have provided the first clues to the chemistry of two of ...
A type of Martian aurora first identified by NASA’s MAVEN spacecraft in 2016 is actually the most common form occurring on the Red Planet, according to new results from the mission. The Martian aurora is known as a proton aurora and can help scientists track water loss from Mars’ atmosphere. On Earth, auroras are commonly seen ...
Shortly after NASA’s OSIRIS-REx spacecraft arrived at asteroid Bennu, an unexpected discovery by the mission’s science team revealed that the asteroid could be active, or consistently discharging particles into space. The ongoing examination of Bennu — and its sample that will eventually be returned to Earth — could potentially shed light on why this intriguing ...
NASA’s Neutron star Interior Composition Explorer (NICER) telescope on the International Space Station detected a sudden spike of X-rays at about 10:04 p.m. EDT on August 20. The burst was caused by a massive thermonuclear flash on the surface of a pulsar, the crushed remains of a star that long ago exploded as a supernova. The X-ray burst, ...
Christina Koch and Jessica Meir, two astronauts from NASA, have become the first in the world to be a part of an all-female spacewalk. The event was originally scheduled seven months back. But since the International Space Station (ISS) only had one medium-sized spacesuit at that time, the walk was abandoned. NASA sent up a ...
An international team of scientists has just discovered two massive bubbles at the center of our Milky Way Galaxy. The bubbles appear to be joined in the shape of an hourglass. It is hypothesized that these are the remnants of a huge cosmic explosion that took place in the galaxy some 7 million years ago. ...
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