Picture an astronaut on the Moon in 2035, reaching for a crisp lettuce leaf grown in lunar soil simulant, gazing upon Earth which is visible through the window. It sounds like science fiction, but a global collaboration of scientists is making this vision increasingly tangible, developing the agricultural technologies that will sustain human exploration of the Moon and Mars.
Touch a metal door handle on a dry day and you might get a small static shock, an annoying but harmless release of built up electrical charge. Now imagine that same phenomenon happening constantly in the swirling dust devils that race across the Martian surface. A team of scientists have just detected these electric discharges on Mars for the first time.
Have scientists finally confirmed the existence of the first exomoon? This is what a recent study accepted for publication in *Astronomy & Astrophysics* hopes to address as a large international team of researchers investigated new methods for identifying an exomoon orbiting a gas giant exoplanet. This study has the potential to help scientists develop new methods for finding exomoons, the latter of which has yet to be confirmed.
What can an ancient supernova teach scientists about Earth and celestial objects? This is what a recently submitted study to *Astronomy & Astrophysics* hopes to address as a team of scientists investigated the interaction of the remnants of supernova that occurred 10-million years ago with Earth. This study has the potential to help scientists better understand how Earth is influenced by celestial objects and what this could mean for the future of life on Earth, along with potentially habitable worlds beyond Earth.
What can equatorial jet streams on gas giant planets teach scientists about gas giant planetary formation and evolution? This is what a recent study published in *Science Advances* hopes to address as a team of scientists investigated the mechanisms of jet streams on gas giants (Jupiter and Saturn) and ice giants (Uranus and Neptune). This study has the potential to help scientists better understand not only the formation and evolution of giant planets in our solar system, but exoplanets, too.
There is a growing movement worldwide to establish a human presence in orbit, on the Moon, and beyond. This presents many challenges, ranging from the technological and logistical to the biological and medical. After all, if people are going to be living and working in space for extended periods, we need to know what the effects will be on the human mind and body. While considerable research has been conducted aboard the International Space Station (ISS), most notably NASA's Twins Study, much more remains to be done before outposts in space can be realized.
How can star populations help astronomers re-evaluate the search for intelligent extraterrestrial life, also called technosignatures? This is what a recently submitted study hopes to address as a team of scientists investigated the parameters of identifying locations of technosignatures, also called extraterrestrial transmitters. This study has the potential to help astronomers constrain the criteria for finding intelligent life in both our galaxy and throughout the universe.
What can star variability—changes in a star’s brightness over time—teach astronomers about exoplanet habitability? This is what a recent study accepted to *The Astronomical Journal* hopes to address as a team of scientists investigated the interaction between a star’s activity and exoplanetary atmospheres. This study has the potential to help astronomers better understand how star variability plays a role in finding habitable exoplanets, specifically around stars that are different from our Sun.
Star formation should be a relatively straightforward process. Dense clouds of molecular hydrogen collapse under gravity, fragmenting into cores that grow into protostars. These infant stars are cold, deeply embedded in their parent clouds, and shouldn't produce ultraviolet radiation. They're not hot enough. Yet when astronomers used the James Webb Space Telescope's MIRI instrument to observe five young stars in the Ophiuchus molecular cloud, 450 light years away, they found clear evidence of UV radiation affecting molecular hydrogen in outflows around these protostars.
What is the importance of studying explosive volcanism on Venus? This is what a recent study published in the *Journal of Geophysical Research: Planets* hopes to address as a team of scientists investigated the potential altitudes of explosive volcanism on Venus. This study has the potential to help scientists better understand the present volcanic activity on Venus, along with gaining insight about its formation and evolution and other planetary bodies throughout the solar system and beyond.
The Nancy Grace Roman Space Telescope continues its inexorable march toward launch. It recently completed another series of tests that brings it a few steps closer to a launch pad in Florida. This time, the telescope was split into two separate parts - an inner portion and an outer portion, each of which went through separate tests throughout the fall.
Researchers at the RIKEN Center for Interdisciplinary Theoretical and Mathematical Sciences (iTHEMS) in Japan recently accomplished something truly unprecedented. With the help of colleagues from the University of Tokyo and the Universitat de Barcelona, the team conducted the world's first Milky Way simulations that accurately represented more than 100 billion stars over 10,000 years. The simulation not only represented 100 times more individual stars than previous models, but was also produced 100 times faster.
The evolution of each individual galaxy is shaped by its surroundings, according to new research. The Deep Extragalactic Visible Legacy Survey (DEVILS), an endeavour of ICRAR and the University of Western Australia, has released its first data. It includes catalogues of morphological, redshift, photometric and spectroscopic data, as well as group environments and halo data for thousands of galaxies.
Studying the light from stars tells us their temperature, composition, age, and evolutionary state. But the red giant companion to Gaia BH2, a black hole system discovered in 2023, tells a contradictory story that doesn't make sense until you consider stellar violence!
I once filmed down a salt mine in North Yorkshire, descending into a dark matter laboratory buried deep underground where scientists wait for the rarest of collisions, dark matter particles interacting with ordinary matter. They're still waiting. But above ground, looking outward rather than inward, Professor Tomonori Totani from the University of Tokyo may have found what those underground detectors haven’t, dark matter revealing itself through light.
A first ever detection of a coronal mass ejection from a small red dwarf could have big consequences for life on any nearby planets.
Mosses conquered some of Earth's harshest environments long before humans arrived. They cling to Himalayan peaks, spread across Antarctic ice, and colonise fresh volcanic lava. These ancient plants, among the first to transition from water to land half a billion years ago, have survived multiple mass extinctions through sheer resilience. Researcher Tomomichi Fujita from Hokkaido University wondered if that resilience extended beyond Earth's atmosphere, so he sent moss to the ultimate extreme environment - the vacuum of space.
Gravitational waves are perhaps the most extraordinary signals in modern astronomy. When black holes or neutron stars collide billions of light years away, they send ripples through spacetime itself that eventually wash over Earth, stretching and squeezing space by distances smaller than a proton. The LIGO, Virgo, and KAGRA detectors exist to catch these impossibly faint whispers from the universe's most violent events, and their latest observation campaign proved remarkably successful.
The number 40,000 might not sound particularly dramatic, but it represents humanity's growing catalogue of near Earth asteroids, rocky remnants from the Solar System's violent birth that cross paths with our planet's orbit. We've come a long way since 1898, when astronomers discovered the first of these wanderers, an asteroid called Eros.
Understanding how exactly lunar dust sticks to surfaces is going to be important once we start having a long-term sustainable presence on the Moon. Dust on the Moon is notoriously sticky and damaging to equipment, as well as being hazardous to astronaut’s health. While there has been plenty of studies into lunar dust and its implications, we still lack a model that can effectively describe the precise physical mechanisms the dust uses to adhere to surfaces. A paper released last year from Yue Feng of the Beijing Institute of Technology and their colleagues showcases a model that could be used to understand how lunar dust sticks to spacecraft - and what we can do about it.
Using in-situ propellant has been a central pillar of the plan to explore much of the solar system. The logic is simple - the less mass (especially in the form of propellant) we have to take out of Earth’s gravity well, the less expensive, and therefore more plausible, the missions requiring that propellant will be. However, a new paper from Donald Rapp, the a former Division Chief Technologist at NASA’s JPL and a Co-Investigator of the successful MOXIE project on Mars, argues that, despite the allure of creating our own fuel on the Moon, it might not be worth it to develop the systems to do so. Mars, on the other hand, is a different story.
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