Category Archives: Science

A wobble reveals the most massive stellar black hole in our galaxy

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Astronomers have discovered the most massive known stellar black hole in the Milky Way galaxy after detecting an unusual wobble in space. The so-called ‘sleeping giant’, called Gaia BH3, has a mass almost 33 times… Read More »

Exploding stars emit powerful bursts of energy − I’m leading a citizen science project to classify and learn about these bright flashes

When distant stars explode, they emit bursts of energy called gamma-ray bursts that are so bright that telescopes on Earth can detect them. Studying these pulses, which can also come from mergers of some exotic astronomical objects such as black holes and neutron stars, can help astronomers like me understand the history of the universe.… Read More »

More climate-warming methane is leaking into the atmosphere than ever reported – here’s how satellites can track the leaks and prevent a valuable resource from being wasted

Far more methane, a potent greenhouse gas, is being released from landfills and oil and gas operations around the world than governments realized, recent aerial and satellite surveys show. That is both a problem for the climate and for human health. It’s also why the U.S. government has tightened regulations on methane leaks and wasteful… Read More »

According to the report, 2023 was a record year for wind installations as the world ramps up clean energy

The world installed 117 gigawatts of new wind energy capacity in 2023, a 50% increase from the previous year, making it the best year ever for new wind energy projects, according to a new report from the industry association. The latest Global Wind Report, published Tuesday by the Global Wind Energy Council, examines the state… Read More »

NASA astronaut Loral O’Hara missed the total solar eclipse, but saw the Earth ‘moving’ beneath him during a spacewalk (Photos)

NASA astronaut Loral O’Hara was prepared for her first spacewalk, but not for the view. O’Hara, along with SpaceX Crew-7 NASA astronaut Jasmin Moghbeli, performed the fourth all-female spacewalk at the International Space Station (ISS) on November 1, 2023. They spent 6 hours and 42 minutes performing maintenance on the station, such as replacing a… Read More »

NASA reconsiders plan to return rare Mars samples to Earth

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. NASA is looking for innovative methods that could help retrieve samples collected by the Perseverance rover on Mars in the future. The rover, which landed on Mars in February 2021, collected specimens from the Jezero… Read More »

The world’s coral reefs are being hit by a fourth mass bleaching event, NOAA says

According to the National Oceanic and Atmospheric Administration, extreme ocean heat is causing mass bleaching of coral reefs around the world. NOAA declared Monday that a “4th global coral bleaching event” was occurring and that bleaching had been documented over the past 14 months in every major ocean basin, including off the coast of Florida… Read More »

Ocean heat is causing a global coral bleaching event, and it could be the worst ever

Coral reefs around the world are experiencing a mass bleaching event as the climate crisis causes record-breaking ocean heat, two scientific bodies announced Monday – with some experts warning it could be the worst bleaching episode in history. More than 54% of the world’s coral reef areas experienced bleaching in the past year, affecting at… Read More »

This fungus can turn crickets into ‘salt shakers of death’

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. This spring, billions of crickets will emerge after more than a decade underground, ready to climb trees and make noise as they sing to attract mates. But some of these insects will not succeed in… Read More »