Friday, June 5, 2026

NASA Bids Farewell to MAVEN Mars Mission in Public Teleconference

Artist’s concept of NASA’s MAVEN spacecraft at Mars. NASA recently announced that, due to a loss of communications, the mission had ended. Credit: NASA/Goddard/University of Colorado/LASP

The first mission devoted to observing the Martian atmosphere and its evolution, NASA’s MAVEN (Mars Atmosphere and Volatile Evolution), has ended after more than 11 years in orbit at Mars and a decade beyond its primary, one-year mission.



They've Been Searching for the Milky Way's Black Hole Wind for 50 Years and Finally Found It

This artist's illustration shows the powerful winds being emitted by a black hole. Astronomers have been trying to find the wind from the Milky Way's supermassive black hole for 50 years, with no luck. But now it looks like they've finally detected it. Image Credit: ESA (acknowledgement: work performed by ATG under contract to ESA). Licence: CC BY-SA 3.0 IGO or ESA Standard Licence

According to theory, all active black holes should produce winds or jets. Astronomers have long searched for wind around the Milky Way’s central supermassive black hole. New images reveal a vacant, cone-shaped region pointing to the black hole. According to new research, only a supermassive black hole could've created this region.



The Cosmic Web Like You've Never Seen it Before

A section of the COSMOS-Web map, zoom x4. Credit: COSMOS-Web Collaboration.

Using data from NASA’s James Webb Space Telescope, astronomers led by researchers at the University of California, Riverside have produced the most detailed map of the cosmic web ever made, tracing the network of galaxies all the way back to when the universe was one billion years old.



What Happens to a Star That Captures A Primordial Black Hole?

This illustration shows a primordial black hole (PBH) inside a Sun-like star. New simulations show that if a star captured a PBH, there are two potential outcomes. One sees the star destroyed rapidly, the other sees the PBH gradually consume the star. Image Credit: MPA, background image: Wikimedia/Creative Commons.

Stephen Hawking predicted that stars can capture primordial black holes (PBH). The PBH find their way to the stellar core, creating a Hawking star. There are two possible outcomes, both deadly for the star. Either it explodes rapidly, or it's slowly consumed by the parasitic PBH.



Thursday, June 4, 2026

New Cloud-Detecting Method Will Help Astronomers Characterize Exoplanets

Artistic representation of WASP-94A. Clouds build as air flows over the dark side of the planet, reaching a large swell by daybreak. The clouds dissipate on the dayside, leaving clear skies in the early evening. Credit: Hannah Robbins/Johns Hopkins University

Astronomers have developed a technique that allows them to detect cloud cycles on distant exoplanets. Using data from the James Webb Sapce Telescope (JWST), the astronomers found that mornings and evenings on the gas giant WASP-94A b have extremely different weather patterns: mornings are riddled with sand clouds, while the skies are clear in the early evenings. By isolating the clouds, researchers can more accurately measure a planet’s atmosphere and provide a clearer picture of the planet’s composition. WASP-94A b, for example, has much less oxygen and carbon than astronomers perviously calculated, making its atmosphere much more like Jupiter than they had originally thought.



Even Without A Magnetosphere, Mars Can Still Deflect Some Solar Wind

MAVEN reached Mars in September 2014 and began its scheduled one-year mission to study the planet's atmosphere. It lasted 11 years, and in 2023 it witnessed a coronal mass ejection strike Mars' atmosphere. Because of that serendipitious observation, scientists saw how the unmagnetized planet was still able to deflect some of the solar wind.  Image Credit: NASA/Goddard/University of Colorado/Laboratory for Atmospheric and Space Physics

New research shows how unmagnetized worlds like Mars can still deflect some of the Sun's solar wind. Unlike magnetospheres that form around planet's like Earth, this effect takes place in Mars' ionosphere. It's called the Zwan-Wolf effect, and it's not clear how deep into the atmosphere it operates.



The Unexpected Brightness 'Gap' in an Ancient Globular Cluster

This is NGC 6397, one of the closest globular clusters (GCs) to the Milky Way. Astronomers found an M-dwarf brightness gap in the cluster. While the same gap has been detected elsewhere, this is the first time it's been detected in a GC. Image Credit: ESA/Euclid/Euclid Consortium/NASA, image processing by J.-C. Cuillandre (CEA Paris-Saclay), G. Anselmi

Scientists using the Euclid space telescope found a red-dwarf brightness “gap” in the population of a globular cluster—an ancient, crowded collection of stars. A similar gap was detected by the Gaia observatory in nearby stellar populations, but it has never before been seen in a globular cluster.