Astronomy

Astrobiology has entered an exciting new phase in recent decades. Since the 1990s, but accelerating in recent years, researchers have begun confirming the existence of exoplanets – that is, planets outside our own solar system – and studying their properties. We now know that planets are common, and a sizeable fraction orbit in the habitable zone of their parent star – suggesting they could have the conditions to sustain biological life.Studies have also revealed entirely new classes of worlds we had no idea could exist. Hycean planets are unknown in our solar system, and are possibly some of the strangest planets discovered to date. They may be ocean-covered worlds with hydrogen-rich atmospheres and, as such, are promising candidates for the detection of biosignature gases – chemical prod...

Stargazers and early risers are in for a stellar show this week, with one of the biggest meteor showers in the southern hemisphere due to light up the skies.The meteors — called the Eta Aquariids – pass through the atmosphere every year, but 2025 is due to be particularly luminous as the moon won’t be visible when they arrive.Here’s how to catch a view of the celestial delight.What is the best time to see the Eta Aquariids meteor shower?The good thing is this particular meteor shower not only happens every year, but spans multiple days.McElroy said Wednesday 7 May would be the “best day” for stargazers, with around two dozen meteors expected to pass per hour.But if it happens to be cloudy that day, you won’t blink and miss it. The shower will continue to have a strong showing on the days p...