Space News & Blog Articles

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NASA is Fixing its Link to Voyager 1

Voyagers 1 and 2 were, to put it simply, incredible. They were true explorers and unveiled many mysteries of the outer Solar System, revealing the outer planets in all their glory. Communication with Voyager 1 has until recently been possible, slow but possible. More recently however, it has been sending home garbled data rendering communication to all intents impossible although messages can still be sent. Engineers at NASA have narrowed the problem down to an onboard computer, the Flight Data System (FDS). A dump of the entire memory of the FDS has now been received so that engineers can attempt to troubleshoot and fix the issue. 

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The Cosmic Neutrino Background Would Tell Us Plenty About the Universe

Readers of Universe Today are probably already familiar with the concept of the Cosmic Microwave Background (CMB). Its serendipitous discovery by a pair of radio astronomers at Bell Labs is the stuff of astronomical legend. Over the past decades, it has offered plenty of insights into the Big Bang and the origins of our universe. But there is another, less well-known background signal that could be just as revolutionary – or at least we think there is. The Cosmic Neutrino Background (CvB) has been posited for years but has yet to be found, primarily because neutrinos are notoriously difficult to detect. Now, a paper from Professor Douglas Scott of the University of British Columbia, developed as part of a summer school on neutrinos held by the International School of AstroParticle Physics in the Italian town of Varenna, discusses what we could potentially learn if we do manage to detect the CvB eventually.

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Mars Was Hiding Another Giant Volcano

Olympus Mons is well known for being the largest volcano in the Solar System. It’s joined on Mars by three other shield volcanoes; Ascraeus, Pavonis and Arsia but a recent discovery has revealed a fifth. Provisionally called Noctis volcano, this previously unknown Martian feature reaches 9,022 metres high and 450 kilometres across. Its presence has eluded planetary scientists because it has been heavily eroded and is on the boundary of the fractured maze-like terrain of Noctis Labyrinthus. 

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It's Time for Jupiter's Annual Checkup by Hubble

Each year, the Hubble Space Telescope focuses on the giant planets in our Solar System when they’re near the closest point to Earth, which means they’ll be large and bright in the sky. Jupiter had its photos taken on January 5-6th, 2024, showing off both sides of the planet. Hubble was looking for storm activity and changes in Jupiter’s atmosphere.

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This is a 1.3 Gigapixel Image of a Supernova Remnant

Stars more massive than the Sun blow themselves to pieces at the end of their life. Usually leaving behind either a black hole, neutron star or pulsar they also scatter heavy elements across their host galaxy. One such star went supernova nearly 11,000 years ago creating the Vela Supernova Remnant. The resultant expanding cloud of debris covers almost 100 light years and would be twenty times the diameter of the full Moon. Astronomers have recently imaged the remnant with a 570 megapixel Dark Energy Camera (DECam) creating a stunning 1.3 gigapixel image. 

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Nancy Grace Roman will Map the Far Side of the Milky Way

The Galaxy is a collection of stars, planets, gas clouds and to the dismay of astronomers, dust clouds. The dust blocks starlight from penetrating so it’s very difficult to learn about the far side of the Galaxy. Thankfully the upcoming Nancy Grace Roman telescope has infrared capability so it can see through the dust. A systematic survey of the far side of the Milky Way is planned to see what’s there and could discover billions of objects in just a month. 

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Another Hycean Planet Found? TOI-270 d

Hycean planets may be able to host life even though they’re outside what scientists consider the regular habitable zone. Their thick atmospheres can trap enough heat to keep the oceans warm even though they’re not close to their stars.

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Starship Reaches Orbit on SpaceX’s Third Test but Breaks Up on Re-Entry

After falling short in its first two attempts, SpaceX got its Starship super-rocket to an orbital altitude today during the launch system’s third integrated flight test. Now it just has to work on the landing. 

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NASA and Boeing Release New Rendering of their X-66 Sustainable Experimental Airliner

Climate change is arguably the single greatest threat facing the world today. According to the Sixth Assessment Report (AR6) by the UN Intergovernmental Panel on Climate Change (IPCC), average global temperatures are set to increase between 1.5 and 2 °C (2.7 to 3.6 °F) by mid-century. To restrict global temperatures to an increase of 1.5 C and avoid the worst-case scenarios, the nations of the world need to achieve net zero emissions by then. Otherwise, things will get a lot worse before they get better, assuming they ever do.

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Webb Sees a Star-Forming Region Blowing Vast Bubbles

Star birth is a messy and chaotic event. Some of the process remains well hidden behind clouds of gas and dust that make up star-forming regions. However, part of it happens in wavelengths of light we can detect, such as visible light and infrared. It’s an intricate process that the Webb telescope (JWST) can study in detail.

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What Can We Learn Flying Through the Plumes at Enceladus?

In the next decade, space agencies will expand the search for extraterrestrial life beyond Mars, where all of our astrobiology efforts are currently focused. This includes the ESA’s JUpiter ICy moon’s Explorer (JUICE) and NASA’s Europa Clipper, which will fly past Europa and Ganymede repeatedly to study their surfaces and interiors. There’s also NASA’s proposed Dragonfly mission that will fly to Titan and study its atmosphere, methane lakes, and the rich organic chemistry happening on its surface. But perhaps the most compelling destination is Enceladus and the lovely plumes emanating from its southern polar region.

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NASA Announces its 2025 Budget. Lean Times Ahead.

Space flight is an expensive business and that money has to come from somewhere. The White House has just released their budget for fiscal year 2025. What does that mean for NASA?, they will get $25.4 billion, the same as it received last year but $2 billion less than it requested. NASA Administrator Bill Nelson said the constraints come from a debt ceiling agreement that limits non-defence spending. Alas the $2 billion deficit means NASA will need to cut costs from various missions.

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A 790,000 Year-Old Asteroid Impact Could Explain Seafloor Spherules

Our solar system does not exist in isolation. It formed within a stellar nursery along with hundreds of sibling stars, and even today has the occasional interaction with interstellar objects such as Oumuamua and Borisov. So it’s reasonable to presume that some interstellar material has reached Earth. Recently Avi Loeb and his team earned quite a bit of attention with a study arguing that it had found some of this interstellar stuff on the ocean seabed. But a new study finds that the material has a much more local origin.

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Ultrablack Coating Could Be Ideal for Telescopes

If you, like me, have dabbled with telescope making you will know what a fickle friend light can be. On one hand you want to capture as much as you can (but only from the object, not from nearby lights) and want to reflect or refract it to the point of observation or study.  What you most certainly don’t want is stray light to be bounced around inside the telescope so components (except the mirror!) are sprayed as black as possible. Unfortunately black paints tend to be quite susceptible to damage and struggle to cope with the harsh conditions and cold temperatures telescopes are subjected to. A team has recently developed a new atomic-layer deposition method which absorbs 99.3% of light and is durable too. 

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Are Andromeda and the Milky Way Already Exchanging Stars?

I often drag out the amazing fact that the Andromeda Galaxy, that faint fuzzy blob just off the corner of the Square of Pegasus, is heading straight for us! Of course I continue to tell people it won’t happen for a few billion years yet but a recent study suggests that we are already seeing hypervelocity stars that have been ejected from Andromeda already. It is just possible that the two galaxies have already started to exchange stars long before they are expected to merge. 

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Colliding Neutron Stars are the Ultimate Particle Accelerators

Gamma-ray telescopes observing neutron star collisions might be the key to identifying the composition of dark matter. One leading theory explaining dark matter it that is mostly made from hypothetical particles called axions. If an axion is created within the intensely energetic environment of two neutron stars merging, it should then decay into gamma-ray photons which we could see using space telescopes like Fermi-LAT.

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This is Europa Clipper’s Version of the Golden Record

The Voyager spacecraft carried on board a plethora of scientific instruments but attached to the side was a golden record. The sounds of Earth were recorded upon it. Now, another mission is going to be carrying a message out into space. The Europa Clipper mission will launch in October and it will carry a plaque with images, illustrations and messages. There will be more than 2.6 million names and the word for ‘water’ converted into waveform from 103 languages. 

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Black Holes are Tearing Stars Apart All Around Us

Galaxy NGC3799 lies around 16 million light years from Earth. Any event observed today within that galaxy took place 16 million years ago. One such event was observed in February 2023 when a surge in brightness in the core was followed by a rapid dimming. The observations that followed revealed that the event was a star being torn apart by a supermassive black hole at the heart of the galaxy. This is not the first time such an event has been observed but it is the first to be within our galactic backyard suggesting it may be more common that first thought. 

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Astronomers Propose a 50-Meter Submillimeter Telescope

Some parts of the Universe only reveal important details when observed in radio waves. That explains why we have ALMA, the Atacama Large Millimetre-submillimetre Array, a collection of 7-meter and 12-meter radio telescopes that work together as an interferometer. But, ALMA-type arrays have their limitations, and astronomers know what they need to overcome those limitations.

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Black Holes Need Refreshing Cold Gas to Keep Growing

The Universe is filled with supermassive black holes. Almost every galaxy in the cosmos has one, and they are the most well-studied black holes by astronomers. But one thing we still don’t understand is just how they grew so massive so quickly. To answer that, astronomers have to identify lots of black holes in the early Universe, and since they are typically found in merging galaxies, that means astronomers have to identify early galaxies accurately. By hand. But thanks to the power of machine learning, that’s changing.

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Cyborg Jellyfish Could Help Explore Oceans Autonomously

Earth’s oceans are—like space—a largely unexplored frontier. Relatively few humans have explored either place, using specialized life-support equipment. Unlike space, however, the oceans also have other beings that can explore them: jellyfish. They can head to places underwater that humans can never go. That makes them interesting candidates for autonomous ocean exploration.

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