Two images of protoplanetary disks side-by-side. The left image shows a dark horizontal band covering the star, with broad, colorful, conical outflows above and below it, and a narrow jet pointing directly up and down from the star. The right image shows the star within a yellow dusty disk, with scattered dust creating purple lobes above and below the disk. Each is on a black background with several galaxies or stars around it.
A Mercury lander mission would create opportunities to sample unique geological features. However, extreme temperature fluctuations on Mercury’s surface pose challenges for exploration on the planetary surface. In a narrow region near the terminator, temperate conditions would allow a rover to run on solar power and collect data and surface samples without needing to withstand the extreme heat.
In the vastness of the Universe, any new object with interesting properties can spur the search for similar objects, potentially establishing a new class of stars. In a paper published in Astronomy & Astrophysics and an arXiv preprint, researchers from the Institute of Science and Technology Austria (ISTA) describe two stellar remnants that share five properties, including X-ray emission, despite being isolated objects. According to the team, these two remnants are sufficient to define a new class of stars.
We’ve spent decades scratching the surface of Mars trying to uncover life there. But we’ve been searching a barren wasteland bombarded by radiation and bathed in toxic perchlorates. The entire time, it's likely that it’s been too hostile to harbor extant life. So if we want a better shot at finding currently living life on Mars, we need to go underground. That is exactly the purpose of Orpheus, a proposed Mars vertical takeoff and landing (VTOL) hopper mission put forth by Connor Bunn and Pascal Lee of the SETI Institute at the 57th Lunar and Planetary Science Conference (LPSC).
The Super Cryogenic Dark Matter Search (SuperCDMS) experiment has reached its coldest operating temperature, hundreds of times colder than outer space.
New research shows that Earth formed from inner Solar System material. Isotopic geochemistry analysis found no evidence that material from beyond Jupiter contributed to Earth's bulk composition. The results also support the idea that Earth's water wasn't delivered by comets.
Japan’s space agency, JAXA, has been knocking it out of the park with small-body exploration missions for decades. They had historic successes with both Hayabusa and Hayabusa2, and they are going to visit the Martian Moons soon with the Martian Moons eXploration (MMX) mission. But after that, they are aiming for something much more pristine and arguably more difficult - a comet. The Next Generation Small-Body Return (NGSR) was recently described in a paper at the Lunar and Planetary Science Conference (LPSC), and is under assessment as a large-class mission for the 2030s.
