Space News & Blog Articles

In this photo, the Artemis II mission's Orion spacecraft is shown positioned on Launch Pad 39B at NASA's Kennedy Space Center in Cape Canaveral, Florida. The image shows the second stage, comprising the Orion Crew Module, the European Service Module, the Launch Abort System, and the spacecraft adapter, all enclosed by the second-stage panels. Just visible beneath is the upper section of the Space Launch System (SLS), NASA's next-generation super-heavy launch vehicle that will send crewed spacecraft and payloads beyond Low Earth Orbit (LEO) in the near future.

This is Part 2 in a series on the age of the universe. Read Part 1.

The JWST has spotted a system of five merging, interacting galaxies only about 800 million years post Big-Bang. This is sooner than astronomers thought, and is another example of the powerful space telescope forcing us to reconsider our understanding of the early Universe.

New tools unlock new discoveries in science. So when a new type of non-destructive technology becomes widely available, it's inevitable that planetary scientists will get their hands on it to test it on some meteorites. A new paper, available in pre-print on arXiv, by Estrid Naver of the Technical University of Denmark and her co-authors, describes the use of two of those (relatively) new tools to one of the most famous meteorites in the world - NWA 7034 - also known as Black Beauty.

In the early 1960s, Dutch astronomer Adriaan Blaauw observed stars moving at unusually high speeds moving through the Milky Way. These stars, as it turned out, were unbound objects that had been kicked out of the Milky Way and periodically looped back and forth through the disk. Blaauw proposed that these stars originated in binary systems and were ejected when the companion star collapsed and exploded off its outer layers in a supernova. By 2005, even faster runaway stars were observed, leading to the designation "hypervelocity stars."

This is Part 1 in a series on the age of the universe.

Aging stars can completely destroy their planets.

Magnetism on the Moon has always been a bit confusing. Remote sensing probes have noted there is some magnetic signature, but far from the strong cocoon that surrounds Earth itself. Previous attempts to detect it in returned regolith samples blended together all of the rocks in those samples, leading to confusion about the source - whether they were caused by a strong inner dynamo in ages past, or by powerful asteroid impacts that magnetized the rocks they hit. A new study from Yibo Yang of Zhejiang University and Lin Xing of the Chinese Academy of Sciences, published recently in the journal Fundamental Research, shows that the right answer seems to be - a little of both.

SpaceX CEO Elon Musk says he’s making space-based artificial intelligence the “immediate focus” of a newly expanded company that not only builds rockets and satellites, but also controls xAI’s generative-AI software and the X social-media platform.

A galaxy's powerful magnetic fields have a fundamental effect on light, and it's all because of dust. Tiny dust grains in interstellar space are elongated rather than spherical. In the presence of a magnetic field, these grains align themselves with the field. That means they preferentially absorb and reflect light.

This Hubble Picture of the Month shows NGC 7722, a lenticular galaxy about 185 million light-years away. It's known for its striking appearance, where dramatic dust lanes can't quite block out the light from its central region. The dusty lanes are likely from a past merger. In fact, astronomers think all lenticular galaxies are the result of past mergers, or at least gravitational interactions with other galaxies.

The chemical is known as thiepine, or 2,5-cyclohexadiene-1-thione (C₆H₆S), a ring-shaped sulfur-bearing hydrocarbon produced in biochemical reactions. When examining the molecular cloud G+0.693–0.027, a star-forming region about 27,000 light-years from Earth near the center of the Milky Way, astronomers from the Max Planck Institute for Extraterrestrial Physics (MPE) and the CSIC-INTA Centro de Astrobiología (CAB) detected this complex molecule in space for the first time. This detection represents the largest sulfur-bearing molecule ever detected beyond Earth, with significant implications for the study of the cosmic origins of life.

The search for life-supporting worlds in the Solar System includes the Jovian moon Europa. Yes, it's an iceberg of a world, but underneath its frozen exterior lies a deep, salty ocean and a nickel-iron core. It's heated by tidal flexing, and that puts pressure on the interior ocean, sending water and salts to the surface. As things turn out, there's also evidence of ammonia-bearing compounds on the surface. All these things combine to provide a fascinating look at Europa's geology and potential as a haven for life.

We see stars as the main constituent of galaxies. They're the visible part, and they're what announce a galaxy's presence. But a galaxy's gas supply is its lifeblood, and tracing the gas as it flows in and through a galaxy reveals its inner workings.

Observations show that Jupiter's icy moon Europa has a thick icy shell covering a warm ocean. The ocean is chemically-rich, and may have all the essential ingredients for life. That's why Europa is such a juicy target in the search for life, and why NASA's Europa Clipper and the ESA's JUICE are on their way to examine the moon in greater detail.

The light, rare element boron, better known as the primary component of borax, a longtime household cleaner, was almost mined to exhaustion in parts of the old American West. But boron could arguably be an unsung hero in cosmic astrobiology, although it's still not listed as one of the key elements needed for the onset of life.

When the rover now named Perseverance landed in Jezero crater in early 2021, scientists already knew they had picked an interesting place to scope out. From space, they could see what looked like a bathtub ring around the crater, indicating there could once have been water there. But there was some debate about what exactly that meant, and it’s taken almost five years to settle it. A new paper from PhD student Alex Jones at Imperial College London and his co-authors has definitively settled the debate on the source of that feature - part of it was once a beach.

Photographing a black hole has presented one of the most unique challenges in astronomy, you can't simply point a telescope at one and snap a picture. Black holes are so distant and compact that capturing their details requires multiple radio telescopes scattered across the globe to work together as one gigantic instrument. The catch? They all need to observe at precisely the same moment, with their signals perfectly aligned.

It’s 2050 and you’re living on Venus. This might come as a surprise due to the planet’s crushing surface pressures (~92 times of Earth) and searing surface temperatures (~465 degrees Celsius/870 degrees Fahrenheit), which is equivalent to ~900 meters (3,000 feet) underwater and hot enough to melt lead, respectively. But you’re not living on the surface. Instead, you’re safe and sound inside a lava tube habitat scanning data from the latest orbiter images while sipping on some habitat-made espresso.

Solar flares are one of the most closely watched processes in solar physics. Partly that’s because they can prove hazardous both to life and equipment around Earth, and in extreme cases even on it. But also, it’s because of how interestingly complex they are. A new paper from Pradeep Chitta of the Max Planck Institute for Solar System Research and his co-authors, available in the latest edition of Astronomy & Astrophysics, uses data collected by ESA’s Solar Orbiter spacecraft to watch the formation process of a massive solar flare. They discovered the traditional model used to describe how solar flares form isn’t accurate, and they are better thought of as being caused by miniaturized “magnetic avalanches.”

"How did life begin?" That question has been pondered by philosophers, scholars, and scientists since time immemorial. In the modern age, it has been generally assumed that the building blocks of life as we know it - amino acids, DNA, and RNA - came together spontaneously to form the first proteins billions of years ago. However, all attempts to recreate this chemical reaction ("abiogenesis") in the laboratory have yielded null results. Nevertheless, it has been widely accepted that this event occurred on Earth, most likely in its early oceans.