Space News & Blog Articles

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.

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 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.

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.

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.

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.

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.

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.

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.

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.

Chemical rockets have taken us to the Moon and back, but traveling to the stars demands something more powerful. Space X’s Starship can lift extraordinary masses to orbit and send payloads throughout the Solar System using its chemical rockets but it cannot fly to nearby stars at thirty percent of light speed and land. For missions beyond our local region of space, we need something fundamentally more energetic than chemical combustion, and physics offers or in other words, antimatter.

What steps can be taken to improve and enhance the lifetime of space solar cells? This is what a recent study published in Joule hopes to address as an international team of researchers investigated new methods for improving both the lifetime and performance of space solar cells from the harshness of space weather and radiation. This study has the potential to help scientists and engineers develop new space technologies, especially as several private companies and government organizations are extending their reach into space.

What can water in Jupiter’s atmosphere teach scientists about the planet’s composition? This is what a recent study published in the *Proceedings of the National Academy of Sciences* hopes to address as a team of scientists investigated the distribution of water with Jupiter’s atmosphere. This study has the potential to help scientists better understand Jupiter’s atmospheric dynamics, composition, and evolutionary history.

Searching for exomoons - moons the orbit around another planet - was one of the most exciting capabilities expected of the James Webb Space Telescope (JWST) when it launched in late 2021. So, after four years of operation, why hasn’t it found one yet? Turns out it’s really, really hard to find a moon around a planet light-years away. A new paper available in pre-print on arXiv from David Kipping of Columbia University (and Cool Worlds YouTube Channel fame) shows why. They used 60 hours of time on JWST’s NIRSpec instrument and weren't able to definitively confirm the existence of a possible exomoon.

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.

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.

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.

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.

All of the proposals floating around out there for invoking dynamical dark energy are a little on the weak side. In many cases, they raise more questions than answers.

Over the course of billions of years, the universe has steadily been evolving. Thanks to the expansion of the universe, we are able to “see” back in time to watch that evolution, almost from the beginning. But every once in a while we see something that doesn’t fit into our current understanding of how the universe should operate. That’s the case for a galaxy described in a new paper by PhD student Sijia Cai of Tsinghua University’s Department of Astronomy and their colleagues. They found a galaxy formed around 11 billion years ago that appears to be “metal-free”, indicating that it might contain a set of elusive first generation (Pop III) stars.

The Cygnus X star-forming region is about 4,600 light-years away. It contains a huge number of massive protostars, and one of the most massive star-forming molecular clouds known. With all of this activity, it's not surprising that it also hosts some objects that have puzzled astronomers.