Space News & Blog Articles

Just because we can find ozone in the atmosphere of other planets doesn't mean there's life. Ozone is a sign of life on Earth, but its detection on Venus shows that it can also be produced abiotically. This indicates that there are different pathways for its creation, not only on Venus but also on other Venus-like exoplanets.

What happens when you see something that just doesn’t make sense? Perhaps you rub your eyes and consider it an anomaly. But what if you see it in an experiment? Say, travelling electrons that make different patterns depending upon whether they were detected? Then, you might want to change your sense of reality. Now, if you can develop a theory for the observations, then maybe you can start a new field of science. It has happened. Quantum mechanics is the name given to this relatively new field and it’s the topic that Sean Carroll writes in his book, “The Biggest Ideas in the Universe – Quanta and Fields”. In his book, there’s much ado about particles, fields, groups and diagrams; all with the aim of enabling any reader to make sense of it.

Asteroids are the ancient remnants of our Solar System's birth, rocky fragments that never formed into planets. Most of these celestial wanderers inhabit the asteroid belt between Mars and Jupiter, where Jupiter's immense gravitational influence prevented them from assembling into a single world. Ranging from house-sized boulders to Ceres, a dwarf planet nearly 1,000 kilometres across, asteroids preserve pristine records of the early Solar System's composition and conditions.

Lunar exploration is entering a new era. Long after the Apollo missions, a renewed international interest comes with ambitious plans for a long-term presence on the Moon. NASA’s Artemis program is leading efforts to return humans to the lunar surface, with Artemis III aiming to land astronauts near the Moon’s South Pole as early as 2026. Meanwhile, countries like China and India have successfully conducted robotic missions, including landings and sample returns, while private companies are increasingly involved through partnerships and commercial lander missions. The focus has shifted from short visits to sustainable exploration, with goals that include building lunar habitats, developing on-site resource utilisation, and establishing infrastructure to support future crewed missions to Mars.

For centuries, astronomers have sought to understand the formation and evolution of the Solar System and the dynamics that govern it. In particular, there is the long-standing question of whether or not the planets' orbits will remain stable over time. However, these studies have generally treated the Solar System as an isolated system, focusing solely on the gravitational interactions between the planets. This is in spite of the fact that astronomers have known for some time that stars in the Milky Way make close passes to each other every so often.

Generation starships may be the only way humans travel to other stars. These hypothetical spacecraft would travel at sub-light speed and take generations to reach their destination. Over the hundreds or even thousands of years, generations of human beings would be born, live, and then die on these ships. Even if that awkward arrangement could be made to work, how would everything else function for so long? What about the spacecraft? What about the AI?

People always want to know what will happen to Earth when the Sun eventually swells up as a red giant. For one thing, the expanding Sun will turn the inner planets into cinders. It will almost certainly spell the end of life on our planet. Mars might become more temperate and hospitable to life. In addition, it could well be a boon for the gas giant Jupiter and its moons. That's because the habitable zone of the Solar System will move outward from where it is now, to a spot encompassing the Jovian system and forcing changes on all of those worlds.