Thursday, May 14, 2026

We've Been Wasting 99% of Our Supernova Data

SN 1994D (bright spot on the lower left), a Type Ia supernova within its host galaxy, NGC 4526 (Credit : NASA/ESA)

Every time an astronomer points a telescope at a distant supernova, they're trying to measure how far away it is. But the light from these stellar explosions arrives tangled up with interference from dust, the age of the host galaxy and the chemical make up of the original star . Unpicking it all has always been a painstaking business. Now a team of researchers has used artificial intelligence to cut through the noise in a single step, potentially making cosmological measurements four times more precise. In a universe full of unanswered questions, that's a very significant leap forward.



Wednesday, May 13, 2026

A Brief-ish History of SETI. Part IV: Arecibo and the WOW! Signal

Artist's impression of the Arecibo Message (left), aerial view of the Arecibo Radio Telescope (right). Credit: Arne Nordmann/Wikimedia/NIAC

During the 1970s, pioneering experiments were conducted that are known today as Messaging Extraterrestrial Intelligence (METI). At the same time, NASA launched four spacecraft bound for interstellar space, each carrying "messages in a bottle" intended for extraterrestrial beings.



Forget Searching for Individual Biosignatures. Instead, Find Their Patterns

This artist's illustration symbolizes the search for individual chemicals that are biosignatures. But new research shows how fruitless this search might be, and how searching for statistical patterns in amino acids and lipids could be the way forward in the search for life elsewhere in the Solar System. Image Credit: NASA

The search for life elsewhere focuses on biosignatures. These are chemicals in atmospheres that can only be attributed to life. But despite the prowess of the JWST, finding slam-dunk proof of life on other worlds is a confounding exercise. New research suggests that rather than focus on individual chemicals, we should look for statistical patterns.



How Super-Quasars Shaped Early Galaxies and Confounded the JWST

This artist's illustration shows a massive galaxy with an active quasar in its center. Quasars are known for their astrophysical jets, but they also have outflows that are more like stellar winds. New research shows that quasars in the ancient Universe were more powerful than modern ones, and they can explain some of the JWST's puzzling observations. Image Credit: NASA, ESA and J. Olmsted (STScI)

Extremely powerful quasars in the early Universe drove star-forming gas out of their galaxies. These Super-quasars are behind the JWST's puzzling early Universe observations.



Four People in a Pixel

A radar image of NASA's Orion spacecraft, captured by the Green Bank Telescope when it was over 343,000 km from Earth. Each pixel represents the capsule's position and velocity — and as scientist Will Armentrout noted when sharing the data with colleagues: "There are four people in those pixels." (Credit : NSF/AUI/NSF NRAO/J.Hellerman)

When NASA's Artemis II spacecraft carried four astronauts around the Moon earlier this year, the world's largest fully steerable radio telescope was quietly watching from a quiet valley in West Virginia. The Green Bank Telescope tracked the Orion capsule across 213,000 miles of empty space with a precision that would embarrass most speedometers and what it produced isn't just an engineering triumph. It's a glimpse of how the world's most sensitive ears are becoming indispensable to the future of human spaceflight.



Tuesday, May 12, 2026

Were Martian Tides Strong Enough to Shape its Ancient Landscape?

Artist's illustration of Mars approximately four billion years ago. (Credit: ESO/M. Kornmesser)

You’re an anaerobic microbe sunbathing on a Martian beach billions of years ago listening to the small waves hit the shoreline as you take in the perchlorates in the Martian regolith. This is because while Mars is warm and wet, it still lacks sufficient oxygen, so anaerobic life like yourself doesn’t need oxygen to survive. You’re chilling for several hours and eventually notice the water hasn’t touched you. You remember over-hearing some otherworldly fellows who briefly landed and discussed the landscape didn’t look well formed, so they left.



Jupiter Is Much More Complicated Than Previously Thought, Says NASA

JunoCam, the visible light imager aboard NASA's Juno, captured this view of Jupiter's northern high latitudes during the spacecraft's 69th flyby of the giant planet on Jan. 28, 2025. Jupiter's belts and zones stand out in this enhanced color rendition, along with the turbulence along their edges caused by winds going in different directions.  Credits: Image data: NASA/JPL-Caltech/SwRI/MSSS, Image processing: Jackie Branc (CC BY)

Jupiter, the gravitational behemoth that makes up a lion’s share of our solar system’s planetary content, is much more complicated than ever previously thought. Or so say leaders from NASA’s highly successful Juno mission.