Space News & Blog Articles

The International Space Station (ISS), which has been continuously occupied for 26 years, is approaching retirement. By 2030, all participating space agencies will bring their astronauts home for the last time, and the station will be maneuvered so it burns up in Earth's atmosphere. The legacy of this station is unmatched, and its successors (of which several are planned) will have extremely big shoes to fill. Nevertheless, there's no shortage of space programs and commercial interests looking to place new space stations in orbit.

Europa is not supposed to look the way it does. Jupiter's icy moon is scarred by a chaotic patchwork of fractured terrain, criss crossed ridges, and disrupted surface regions that suggest something dynamic is happening beneath its frozen shell. Scientists have long suspected that a vast liquid ocean, kept warm by the gravitational kneading of Jupiter's enormous gravity, lies hidden beneath that ice. Now, a new study using the James Webb Space Telescope is adding a crucial piece to the puzzle, and the implications reach right to the heart of astrobiology.

Traditional chemical rockets, though they are the most commonly used propulsion method for space exploration today, are beholden to the tyranny of the rocket equation. Every ounce of thrust they use must also start out as fuel, which means the rocket itself will have to weigh more, and weight is one of the limiting factors in how fast a propulsion system can go. So, scientists have been searching for, and actively testing, alternatives for decades. One of the most promising is the solar sail - a huge reflective sheet that uses sunlight, or in some cases a “pushing laser” to maneuver about the solar system without any onboard propellant necessary. A recent paper published in the Journal of Nanophotonics by Dimitar Dimitrov and Elijah Taylor Harris of Tuskegee University describes a new type of light sail that solves some of the major problems of existing designs.

Most galaxies have a supermassive black hole at their center, but some galaxies have two. These supermassive binaries form when two galaxies collide and merge. We can detect some of these binaries, such as by observing the periodic changes of a quasar or by observing the binary directly, such as in the case of NGC 7727. But most supermassive binaries remain hidden. They are too far away to be observed directly or too inactive to be observed by jets. And while gravitational wave observatories can detect the mergers of stellar-mass black holes, we can't yet detect the mergers of supermassive black holes. But a new study shows how we might detect some of them.

This is Part 2 of a series on interstellar comets. Read Part 1.

Our first satellites were little more than repeater stations that propagated our radio and tv signals around the world. But now we live in an age where a fleet of orbiting space telescopes and satellites seeks out and examines light from across the cosmos. When a powerful burst of energy flashes elsewhere in the Universe, satellites detect it, record it, and then scientists analyze it in excruciating detail.

In addition to being a staple of science fiction, the concept of megastructures has long been the subject of serious scientific studies. As famed physicist Freeman Dyson originally proposed in 1960, "Malthusian pressures will ultimately drive an intelligent species" to occupy an "artificial biosphere which completely surrounds its parent star." In short, he theorized that advanced civilizations would disassemble their planet (or planets) to create a structure (which has since come to be called a "Dyson Sphere" that would harness all the energy from their star and provide immense living space.

The Chinese didn't invent the rocket but they came remarkably close. More than a thousand years ago, during the Song Dynasty, Chinese engineers were packing black powder into bamboo tubes and launching fire arrows that hissed across battlefields on jets of smoke and flame. Those crude devices were the distant ancestors of every launch vehicle that has ever punched through Earth's atmosphere and there's a pleasing symmetry in the fact that, today, China operates one of the most capable and ambitious space programmes on the planet. From its first satellite in 1970 to a fully operational crewed space station orbiting overhead right now, the journey has been extraordinary. And in 2026, it's about to get even more interesting.

Astronomers gain new key insights from old solar observations.

The European Southern Observatory (ESO) just released its photo of the week. This image, acquired by the Very Large Telescope (VLT) in Chile, shows the RCW 36 nebula, located about 2,300 light-years away in the Vela Constellation. But to observers, it looks like a cosmic hawk spreading its wings: the dark clouds at the center resembling the hawk's head and body, and the filaments extending to the right and left serving as the wings. And in a nice twist, the image itself was acquired by the High Acuity Wide-field K-band Imager-1 (HAWK-1) instrument on the VLT.

It's a well-known fact that if humanity wishes to explore deep space and to live and work on other planets, we need to bring Earth's environment with us. This includes life support systems that leverage biological processes - aka. Bioregenerative Life Support Systems (BLSS) - but also the many species of microbes that are essential to living systems. Humans already bring microbes with them when they travel to space, in particular, to the International Space Station (ISS). These microbes become part of the natural environment, sticking to surfaces, growing in nooks and crannies, and getting into everything.

Even when the idea of terraforming Mars was originally put forward, the idea was daunting. Changing the environment of an entire planet is not something to do easily. Over the following decades, plenty of scientists and engineers have looked at the problem, and most have come to the same conclusion - we’re not going to be able to make Mars anything like Earth anytime soon. A new paper available in pre-print on arXiv from Slava Turyshev of NASA’s Jet Propulsion Laboratory, is a good explainer as to why.

On Earth, aurorae are fleeting displays. They occur when charged particles from the Sun strike Earth's magnetosphere. Most of these particles are deflected away, but some particles become trapped and are directed toward the poles by magnetic field lines. They find their way into the upper atmosphere where they collide with atoms and molecules. This creates the energetic display in the sky, and the stronger the flow of charged particles from the Sun, the further the aurorae extend into middle latitudes.

Lunar dust can be a pain - but it’s also literally the ground we will have to traverse if we are ever to have a permanent human settlement on the Moon. In that specific use case, it’s clingy, jagged, staticky properties can actually be an advantage, according to a new paper, recently published in Research from researchers at Beihang University, who analyzed the mechanical properties of samples returned by Chang’e 6 mission to the far side of the Moon.

The central region of our Milky Way, sometimes referred to as the "Bulge," remains something of an enigma to astronomers. Because it is densely packed with stars and clouds of dust and gas, capturing images of its interior has historically been very difficult. But with advances in radio astronomy over many decades, which can capture light that is otherwise blocked at visible wavelengths, astronomers have made some immensely fascinating finds there. In addition to the well-known supermassive black hole (SMBH), Sagittarius A*, there is chemistry at work that could shed light on the origins of life in our galaxy.

Finding Earth-like exoplanets with the composition and ingredients for life as we know it is the Holy Grail of exoplanet hunting. Since the first exoplanets were identified in the 1990s, scientists have pushed the boundaries of finding exoplanets through new and exciting methods. One of these methods is the direct imaging method, which involves carefully blocking out the host star within the observing telescope, thus revealing the orbiting exoplanets that were initially hiding within the star’s immense glare.

Back in February 2025, a SpaceX rocket that had delivered 22 Starlink satellites to orbit had a malfunction. It failed to execute a planned deorbit burn and drifted for 18 days in orbit before beginning an uncontrolled descent about 100km off the west coast of Ireland. Some parts of the rocket landed in Poland, and while they didn’t injure anybody, there was enough concern about the lack of communication that Poland dismissed the head of its space agency. But that wasn't the only lasting impact of this failure. A new paper from Robin Wing and her colleagues at the Leibniz Institute for Atmospheric Physics, published in Communications Earth & Environment ties that specific rocket reentry to a massive plume of pollution for the first time.

Here's one less thing to worry about — or to look forward to: NASA has ruled out any chance that an asteroid called 2024 YR4 will hit the moon in 2032. Last year, the uncertainty surrounding the space rock's orbital path held out a slight chance of impact, but fresh observations from NASA's James Webb Space Telescope confirm that it'll be a miss.

The Universe is full of surprises, including a fascinating type of "space laser" known as Mega-Microwave Amplification by Stimulated Emission of Radiation (megamasers). More specifically, hydroxyl megamasers (OHMs) are extremely bright radio-wavelength emissions produced when gas-rich galaxies collide. This compresses the gas and stimulates large reservoirs of hydroxyl molecules (-OH) to amplify radio emissions. Using the MeerKAT radio telescope in South Africa, astronomers discovered a hydroxyl megamaser located in a violent galactic merger more than 8 billion light-years away.

The ESA's Mars Express probe has been surveying Mars from orbit for more than twenty years. The way it has mapped the surface using its High Resolution Stereo Camera (HRSC) has drastically changed the way we see the Red Planet. In a recent article, the ESA shared a series of HRSC images highlighting the heavily cratered region known as Arabia Terra. The study of Martian craters offers insight into Mars' geology, meteorology, and its long and turbulent history. The images were generated from the camera's digital terrain model and the nadir and colour channels.

Ever since physicist Freeman Dyson first proposed the concept in 1960, the “Dyson sphere” has been the holy grail of techno-signature hunters. A highly advanced civilization could build a “sphere” (or, in our more modern understanding, a “swarm” of smaller components) around their host star to harvest its entire energy output. We know, in theory at least, that such a swarm could exist - but what would it actually look like if we were able to observe one? A new paper available in pre-print on arXiv, and soon to be published in Universe from Amirnezam Amiri of the University of Arkansas digs into that question - and in the process discloses the types of stars that are the most likely to find them around.