Astronomers have identified two different cases of “mini-Neptune” planets that are losing their puffy atmospheres and likely transforming into super-Earths. Radiation from the planets’ stars is stripping away their atmospheres, driving hot gas to escape like steam from a pot of boiling water. “Most astronomers suspected that young, small mini-Neptunes must have evaporating atmospheres,” says […]

Three newly-discovered planets have been orbiting dangerously close to stars nearing the end of their lives. Out of the thousands of extrasolar planets found so far, these three gas giant planets first detected by the NASA TESS (Transiting Exoplanet Survey Satellite) Mission, have some of the shortest-period orbits around subgiant or giant stars. One of […]

Imagine being in a place where the winds are so strong that they move at the speed of sound. That’s just one aspect of the atmosphere on XO-3b, one of a class of exoplanets (planets outside our solar system), known as hot Jupiters. The eccentric orbit of the planet also leads to seasonal variations hundreds […]

NASA’s Curiosity rover landed on Mars on August 6, 2012, and since then has roamed Gale Crater taking samples and sending the results back home for researchers to interpret. Analysis of carbon isotopes in sediment samples taken from half a dozen exposed locations, including an exposed cliff, leave researchers with three plausible explanations for the […]

Often portrayed as destructive monsters that hold light captive, black holes take on a less villainous role in the latest research from NASA’s Hubble Space Telescope. A black hole at the heart of the dwarf galaxy Henize 2-10 is creating stars rather than gobbling them up. The black hole is apparently contributing to the firestorm […]

Astronomers are one step closer to revealing the properties of dark matter enveloping our Milky Way galaxy, thanks to a new map of twelve streams of stars orbiting within our galactic halo. Understanding these star streams is very important for astronomers. As well as revealing the dark matter that holds the stars in their orbits, […]

A UC Riverside astronomer and a group of eagle-eyed citizen scientists have discovered a giant gas planet hidden from view by typical stargazing tools. The planet, TOI-2180 b, has the same diameter as Jupiter, but is nearly three times more massive. Researchers also believe it contains 105 times the mass of Earth in elements heavier […]

For the first time ever, astronomers have imaged in real time the dramatic end to a red supergiant’s life — watching the massive star’s rapid self-destruction and final death throes before collapsing into a type II supernova. Led by researchers at Northwestern University and the University of California, Berkeley (UC Berkeley), the team observed the […]

About 400,000 years after the universe was created began a period called “The Epoch of Reionization.” During this time, the once hotter universe began to cool and matter clumped together, forming the first stars and galaxies. As these stars and galaxies emerged, their energy heated the surrounding environment, reionizing some of the remaining hydrogen in […]

An astronomer from NSF’s NOIRLab has teamed up with a geologist from California State University, Fresno, to make the first estimates of rock types that exist on planets orbiting nearby stars. After studying the chemical composition of “polluted” white dwarfs, they have concluded that most rocky planets orbiting nearby stars are more diverse and exotic […]

The spiral galaxy NGC 105, which is about 215 million light-years away in the constellation Pisces, is captured in the image from NASA/Hubble ESA’s Space Telescope. While it appears that NGC 105 is colliding with another galaxy, this is simply the consequence of the two objects in the night sky aligning by chance. The elongated […]

Rogue planets are elusive cosmic objects that have masses comparable to those of the planets in our Solar System but do not orbit a star, instead roaming freely on their own. Not many were known until now, but a team of astronomers, using data from several European Southern Observatory (ESO) telescopes and other facilities, have […]

Analysis of ancient DNA from one of the best-preserved Neolithic tombs in Britain has revealed that most of the people buried there were from five continuous generations of a single extended family. By analysing DNA extracted from the bones and teeth of 35 individuals entombed at Hazleton North long cairn in the Cotswolds-Severn region, the […]

Beijing: Chinese researchers have developed a new catalyst that can convert carbon dioxide and water into pure formic acid, a raw material in the organic chemical industry, the Guangming Daily reported. The researchers from the University of Science and Technology of China, the University of Electronic Science and Technology of China, and the Dalian Institute […]

One of the largest planets ever detected orbits at an enormous distance around two stars with a combined mass up to 10 times greater than our sun, an extreme celestial family that shatters assumptions about the type of places where planets can exist. The planet, located about 325 light years from Earth, is a gas […]

It almost is not fair. Carnivorous dinosaurs were armed with menacing teeth inside muscular jaws, wielded dangerous claws on their hands and feet, and boasted keen vision and sense of smell. And, as new research confirms, some were pretty fast, too. Two trackways of Cretaceous Period fossilized footprints from about 120 million years ago discovered […]

Benjamin Taub Obviously, the aliens all built their houses on the far side of the Moon, beyond the gaze of our prying telescopes. What they didn’t bank on, however, was a little visit from China’s Yutu-2 rover, which has spotted an intriguing cube-shaped object on the lunar surface, described as a “mystery house” by the […]

As part of a team of collaborators from Northern Arizona University and Johns Hopkins University, NAU PhD candidate Ari Koeppel recently discovered that water was once present in a region of Mars called Arabia Terra. Arabia Terra is in the northern latitudes of Mars. Named in 1879 by Italian astronomer Giovanni Schiaparelli, this ancient land […]

Seven Earth-sized planets orbit the star TRAPPIST-1 in near-perfect harmony, and U.S. and European researchers have used that harmony to determine how much physical abuse the planets could have withstood in their infancy. “After rocky planets form, things bash into them,” said astrophysicist Sean Raymond of the University of Bordeaux in France. “It’s called bombardment, […]

Mars explorers searching for signs of ancient life could be fooled by fossil-like specimens created by chemical processes, research suggests. Rocks on Mars may contain numerous types of non-biological deposits that look similar to the kinds of fossils likely to be found if the planet ever supported life, a study says. Telling these false fossils […]

After decades of uncertainty, researchers have confirmed the existence of lunar carbon dioxide cold traps that could potentially contain solid carbon dioxide. The discovery will likely have a major influence in shaping future lunar missions and could impact the feasibility of a sustained robot or human presence on the moon. In the permanently shadowed regions […]

The dwarf planet Vesta is helping scientists better understand the earliest era in the formation of our solar system. Two recent papers involving scientists from the University of California, Davis, use data from meteorites derived from Vesta to resolve the “missing mantle problem” and push back our knowledge of the solar system to just a […]

Amazon’s owner, Jeff Bezos recently lost a case against NASA losing a billion-dollar contract, that was rewarded to Musk’s Space X. Musk instantly posted a meme targeting Bezos, once again taking a dig at his billionaire rival. The contract to build lunar lander for the US Artemis Program has been ruled against Blue Origin by […]

Although thousands of planets have been discovered in the Milky Way, most reside less than a few thousand light years from Earth. Yet our Galaxy is more than 100,000 light years across, making it difficult to investigate the Galactic distribution of planets. But now, a research team has found a way to overcome this hurdle. […]

Sending human travelers to Mars would require scientists and engineers to overcome a range of technological and safety obstacles. One of them is the grave risk posed by particle radiation from the sun, distant stars and galaxies. Answering two key questions would go a long way toward overcoming that hurdle: Would particle radiation pose too […]

A compositional link between planets and their respective host star has long been assumed in astronomy. For the first time now, a team of scientists, with the participation of researchers of the National Centre of Competence in Research (NCCR) from the University of Bern and the University of Zürich, deliver empirical evidence to support the […]