Most rovers have been built for Mars, and each one of them is a complex machine designed with specific goals and terrains in mind. But the Moon is different than Mars. We’re not searching for life there; we’re trying to establish a presence.
There are three known types of black holes in the Universe: supermassive black holes that lurk in the centers of galaxies, stellar-mass black holes that are the remnants of massive stars, and intermediate-mass black holes that can be found in dense clusters of stars. But there is a fourth, hypothetical type of black hole known as primordial black holes (PBHs). If they exist, they could solve a few cosmological mysteries.
Trisat-R’s innovative camera pioneering a new technology in space caught a unique view of our home world.
The theory of relativity is at once simple and elegant but also maddeningly nonintuitive. There’s no need to get into the full guts and glory of that theory here, but there is one feature of Einstein’s work that takes center stage, and would eventually lead him into a complete reshaping of Newton’s gravity, altering our very conceptions of the fabric of the universe.
By discovering two interstellar objects (ISOs), we know that asteroids and comets from other star systems pass through the Solar System from time to time. By inference, some of these must have crashed into the Moon, creating impact craters. If we could study the impact sites, we might be able to learn about the star systems that they came from.
Quasars, short for quasi-stellar objects, are one of the most powerful and luminous classes of objects in our Universe. A subclass of active galactic nuclei (AGNs), quasars are extremely bright galactic cores that temporarily outshine all the stars in their disks. This is due to the supermassive black holes in the galactic cores that consume material from their accretion disks, a donut-shaped ring of gas and dust that orbit them. This matter is accelerated to close to the speed of light and slowly consumed, releasing energy across the entire electromagnetic spectrum.
What can we do about space junk? We know how much debris is in orbit, and we know the problem is getting worse. It’s our fault.
The European Space Agency (ESA) is looking to the future and contemplating its next M-class (Medium) mission. These missions are crucial to the ESA Science Programme (part of the agency’s Science Directorate), which aims to provide the best tools to ensure Europe’s continued participation in space exploration and sustain its capabilities in space by fostering innovation, maintaining launch services, and spacecraft operations. The latest round began in December 2021, when the ESA called for proposals for the next M-class mission to launch in the mid-2030s.
The Milky Way can’t hold onto all of its stars. Some of them get ejected into intergalactic space and spend their lives on an uncertain journey. A team of astronomers took a closer look at the most massive of these runaway stars to see what they could find out how they get ejected.
Lucy’s images of asteroid Dinkinesh are the gift that keeps on giving. First, it was the discovery of a smaller companion. Now, it turns out that the companion itself is a contact binary. That’s two smaller objects touching each other as they orbit with Dinkinesh. So, how did they get that way?
Einstein’s fascination with light, considered quirky at the time, would lead him down the path to a brand new theory of physics.
What can slime molds tell us about the large-scale structure of the Universe and the evolution of galaxies? These things might seem incongruous, yet both are part of nature, and Earthly slime molds seem to have something to tell us about the Universe itself. Vast filaments of gas threading their way through the Universe have a lot in common with slime molds and their tubular networks.
A recent study published in Frontiers in Physiology examines how vibrating wearable devices, known as vibrotactors, can be used to help astronauts cope with spatial disorientation when in space, which results from the lack of gravitational cues, or natural sensory perceptions, they are accustomed to using when on Earth and despite the rigorous training the astronauts undergo to combat the symptoms of spatial disorientation. This study was conducted by a team of researchers at Brandeis University and holds the potential to help develop more efficient methods to combat spatial disorientation, especially with long-term missions to the Moon, and even Mars.
Not to make anyone feel old, but it’s been over 11 years since NASA’s Curiosity Rover landed on Mars. The rover has now seen the sun rise on Mars over 4,000 times. During this time, the rover has driven almost 32 kilometers on Mars, making its way up the flanks of Mount Sharp while studying the ancient history of water on Mars.
A supernova explosion is a cataclysmic explosion that marks the violent end of a massive star’s life. During the event, the star releases immense amounts of energy, often outshining the combined light from all the stars in the host galaxy for a very brief period of time. The explosion produces heavy elements and spreads them out among the stars to contribute to the formation of new stars and planets. The closest supernova in recent years occurred in the Large Magellanic Cloud in 1987 (SN1987A) and now, a team of astronomers have searched through mountains of data to see if they can detect gravitational waves from the remnant.
Saturn’s ocean moon, Enceladus, is attracting increasing attention in the search for life in our Solar System. Most of what we know about Enceladus and its ice-covered ocean comes from the Cassini mission. Cassini ended its exploration of the Saturn system in 2017, but scientists are still working through its data.
Landing safely on an asteroid is no mean feat. Despite several recent successes, there have also been notable failures – most famously, the Philae lander to 67P/Churyumov-Gerasimenko. Admittedly, that was an attempt to land on a comet rather than an asteroid, but those two bodies share many of the same landing hazards. One of the most prevalent of those is “inhomogenous” gravity. To tackle this problem, researchers from the Harbin Institute of Technology in China recently released a paper detailing a framework for performing “soft landings” on asteroids, which might help make exploring these rocky worlds much more accessible.
The Indian space program has been on a bit of a tear lately. Chadrayaan-3 was just the latest successful for the ISRO, India’s space agency, when it launched in July – especially juxtaposed with Luna-25, a Russian moon lander mission that launched around the same time and failed spectacularly by crashing into the Moon. Maybe in part due to the ISRO’s success, Indian Prime Minister Narendra Modi appears to have taken an increased interest in the program and recently chaired a meeting to review the Gaganyaan Mission, India’s first foray into crewed space flight. But while in the meeting, he suggested the country’s exploration goals should go further – much further.
An old refractor telescope sees a second life under the night skies, thanks to the efforts of a dedicated amateur observer.
Elon Musk and Jeff Bezos may harbor multibillion-dollar dreams of sending millions of people to live on Mars, on the moon and inside free-flying space habitats — but a newly published book provides a prudent piece of advice: Don’t go too boldly.
I know for a fact it’s one of the most annoying things that can happen. I’ve done it lots; whether that be out at night with telescope or a bit of DIY but for sure it has to rate as one of the most frustrating things to happen. I am talking of dropping something you are using. Ranking high is dropping tools while you are actually using them.. Dropping a tool is one thing but imagine dropping an entire bag of tools, while in orbit!!!! Oops!
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