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How Could Astronauts Call for Help from the Moon?
Exploring the Moon poses significant risks, with its extreme environment and hazardous terrain presenting numerous challenges. In the event of a major accident, assistance might take days or even weeks to arrive. To address this, Australian researchers have created a distress alert system based upon the COSPAS-SARSAT technology used for Earth-based search and rescue operations. …
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There Was a 15 Minute Warning Before Tonga Volcano Exploded
Volcanoes are not restricted to the land, there are many undersea versions. One such undersea volcano known as Hunga Tonga-Hunga Ha’apai off the coast of Tonga. On 15th January 2022, it underwent an eruption which was one of the most powerful in recent memory. A recent paper shows that seismic waves were released 15 minutes …
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Main Sequence and White Dwarf Binaries are Hiding in Plain Sight
Some binary stars are unusual. They contain a main sequence star like our Sun, while the other is a “dead” white dwarf star that left fusion behind and emanates only residual heat. When the main sequence star ages into a red giant, the two stars share a common envelope. This common envelope phase is a …
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What a Misplaced Meteorite Told Us About Mars
11 million years ago, Mars was a frigid, dry, dead world, just like it is now. Something slammed into the unfortunate planet, sending debris into space. A piece of that debris made it to Earth, found its way into a drawer at Purdue University, and then was subsequently forgotten about. Until 1931, when scientists studied …
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Uranus is Getting Colder and Now We Know Why
Uranus is an oddball among the Solar System’s planets. While most planets’ axis of rotation is perpendicular to their orbital plane, Uranus has an extreme tilt angle of 98 degrees. It’s flopped over on its side, likely from an ancient collision. It also has a retrograde orbit, opposite of the other planets. The ice giant …
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How Scientists Repurposed a Camera on ESA’s Mars Express Mission
A camera aboard the Mars Express orbiter finds a new lease on life. Sometimes, limitations can lead to innovation. A recent paper highlights how researchers are utilizing the VMC (Visual Monitoring Camera) aboard the European Space Agency’s (ESA) venerable Mars Express orbiter. The work is a collaboration between the European Space Agency (ESA) and the …
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SpIRIT CubeSat Demonstrates a Operational Gamma and X-Ray Detector
CubeSats are becoming more and more capable, and it seems like every month, another CubeSat is launched doing something new and novel. So far, technology demonstration has been one of the primary goals of those missions, though the industry is moving into playing an active role in scientific discovery. However, there are still some hurdles …
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Sun-Like Stars Around Black Holes: What Gives?
Buried in the treasure trove of the Gaia catalog were two strange black hole systems. These were black holes orbiting sun-like stars, a situation that astronomers long thought impossible. Recently a team has proposed a mechanism for creating these kinds of oddballs. The two black holes, dubbed BH1 and BH2, are each almost ten times …
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Starship’s Booster (and Donald Trump) Make a Splash With Sixth Flight Test
SpaceX’s Starship launch system went through its sixth flight test today, and although the Super Heavy booster missed out on being caught back at its launch pad, the mission checked off a key test objective with President-elect Donald Trump in the audience. Trump attended the launch at SpaceX’s Starbase complex in the company of SpaceX …
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The Strange Pulsar at the Center of the Crab Nebula
Thanks to the Hubble Space Telescope, we all have a vivid image of the Crab Nebula emblazoned in our mind’s eyes. It’s the remnant of a supernova explosion Chinese astronomers recorded in 1056. However, the Crab Nebula is more than just a nebula; it’s also a pulsar. The Crab Pulsar pulsates in an unusual ‘zebra’ …
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