Blue Origin Plans A Pair Of Low-Flying Prospectors Around The Lunar South Pole

By Andy Tomaswick - April 06, 2026 05:51 PM UTC | Planetary Science
The water locked up in the Permanently Shadowed Regions (PSRs) of the Moon’s south pole is a critical resource if we are ever going to get a permanent lunar presence off the ground. But while we know the water ice there exists, we don’t really know how much. We have to move from general estimates to mineable-scale prospecting data. That is what Oasis-1, the newly proposed lunar prospecting mission from Blue Origin that was recently introduced at the 2026 Lunar and Planetary Science Conference (LPSC) is meant to do.
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JWST Spies Once-hidden Treasures in the W51 Starbirth Crèche

By Carolyn Collins Petersen - April 06, 2026 01:04 AM UTC | Stars
Star formation is a dramatic and complex process that erupts throughout the Universe. Yet, a lot of the action gets hidden by clouds of gas and dust. That's where observatories such as the James Webb Telescope JWST and the Atacama Large Millimeter Array (ALMA) come in handy. They use infrared light and radio waves, respectively, to pierce the veil surrounding the process of starbirth.
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The Habitable Worlds Observatory Will Need Astrometry To Find Life

By Andy Tomaswick - April 03, 2026 01:10 PM UTC | Exoplanets
We’re getting closer and closer to finding a real Earth-like exoplanet. But finding one is only half the battle. To truly know if we’re looking at an Earth analog somewhere else in the galaxy, we have to directly image it too. That’s a job for the Habitable Worlds Observatory (HWO), a planned space-based telescope whose primary job is to do precisely that. But even capturing a picture and a planet and getting spectral readings of its atmospheric chemistry still isn’t enough, according to a new paper available in pre-print on arXiv by Kaz Gary of Ohio State and their co-authors. HWO will need to figure out how much a planet weighs first.
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Astronomers Find a Third Galaxy Missing Its Dark Matter, Validating a Violent Cosmic Collision Theory

By Andy Tomaswick - April 02, 2026 12:15 PM UTC | Cosmology
Astronomers have long argued that dark matter is the invisible scaffolding that holds galaxies together. Without its immense gravitational pull, the rotational spins of galaxies would force them to simply fly apart. But now, scientists have found a string of galaxies that seem to be missing their dark matter entirely. The latest in this string, known as NGC 1052-DF9, is described in a new paper, available in pre-print on arXiv, by Michael Keim, Pieter van Dokkum and their team from Yale. It lends credence to a radical theory of galaxy formation known as the “Bullet Dwarf” collision scenario, which has been a controversial idea for the last decade.
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Exploding Primordial Black Holes Might Have Reshaped the Early Universe - And Created All Matter As We Know It

By Andy Tomaswick - April 01, 2026 01:23 PM UTC | Cosmology
The early universe is absolutely so far outside our understanding of how the world works it's hard to describe in words. Back then, the cosmos wasn’t filled with stars and galaxies but with a boiling soup of quarks and gluons, with a few microscopic black holes thrown in, occasionally detonating like depth charges. That’s the early universe theorized by a new paper, available in pre-print from arXiv, from researchers at Vrije Universiteit Brussel and MIT anyway.
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Mercury Scout Mission Concept with Solar Sail Propulsion

By Laurence Tognetti, MSc - April 01, 2026 05:14 AM UTC | Missions
The planet Mercury is the closest planet to the Sun, and also the most difficult for spacecraft to visit and explore. This is because as spacecraft get closer to Mercury, the Sun’s enormous gravity pulls in the spacecraft, greatly increasing its speed and making it hard to slow down without large amounts of fuel. But what if a spacecraft could both travel to and explore Mercury without fuel? This could drastically reduce mission costs while delivering impactful science.
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KYTHERA Mission Concept Targets 200-Day Mission to Venus Surface

By Laurence Tognetti, MSc - April 01, 2026 02:46 AM UTC | Missions
The planet Venus is often called “Earth’s twin” due to the similar sizes, but the reality couldn’t be farther from the truth. Unlike Earth, which is hospitable to an estimated billions of lifeforms, Venus is not hospitable to life as we know it, at least on its surface. This is because the surface of Venus not only experiences an average temperature of 464 degrees Celsius (867 degrees Fahrenheit), but it also has crushing pressures approximately 92 times of Earth, or equivalent to approximately 1 kilometer (3,000 feet) below the ocean. These extreme surface conditions are why the longest spacecraft to survive on the Venusian surface is just over two hours.
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Tales of Two Comets: A1 MAPS and R3 Pan-STARRS Both Make a Showing in April

By David Dickinson - March 31, 2026 05:12 PM UTC | Observing
All eyes are on the inner solar system in April 2026, as two comets reach perihelion. One, Comet R3 Pan-STARRS we’ve known about since last year. Another, sungrazer A1 MAPS was just found as the first comet of 2026 and presents us with a big question: will it survive its blistering perihelion passage on Saturday, April 4th, or simply vaporize like the majority of sungrazers before it?
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Are We About to Permanently Scar the Night Sky With One Million AI Satellite and 50,000 Space Mirrors?

By Andy Tomaswick - March 31, 2026 11:07 AM UTC | Space Policy
If you thought the current crop of satellite megaconstellations was bad, you’re going to be horribly disappointed by new proposals from both SpaceX and a company called Reflect Orbital. Their combined plans would fundamentally alter the night sky as we know it, and the global astronomical community is sounding the alarm - most notably letters from the Royal Astronomical Society (RAS), the European Southern Observatory (ESO), and the International Astronomical Union (IAU) strongly opposing the plan, which currently sits with America’s Federal Communications Commission (FCC) for approval.
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Black Hole Runs Out of Gas, Rapidly Dims its Galaxy

By Carolyn Collins Petersen - March 31, 2026 06:00 AM UTC | Black Holes
It's not often that astronomers can observe huge changes in a galaxy's brightness over the course of a few years. Most galaxies change in brightness (and other characteristics) over millions or billions of years. So, when images of the 10-billion-light-year distant galaxy J0218-0036 showed that it dimmed down by a twentieth of its previous brightness in just 20 years, observers were surprised. What could cause it to do that? That's not "normal" for AGN.
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Uranus Mission Concept CASMIUS to Probe Ice Giant Secrets

By Laurence Tognetti, MSc - March 31, 2026 05:29 AM UTC | Missions
The ice giant Uranus is one of the most fascinating objects in the solar system, with its sideways rotation, intricate ring system, and unique family of moons. However, it is also one of the least explored objects in the solar system, owing to its extreme distance from the Sun. With NASA’s Voyager 2 spacecraft remaining as the only spacecraft to visit Uranus, scientists continue to design and envision mission concepts for returning to explore Uranus and its icy secrets.
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