The Petersburg Post

Thursday, Apr 25th, 2024 - Astronomers have witnessed a rare giant flare from a magnetar about 12 million light-years away. Such events release huge amounts of energy in the form of gamma rays and are therefore known as gamma-ray bursts (GRBs). These GRBs usually last less than a second and originate from neutron stars – the dense remains of a dead giant star's core. Magnetars are a type of highly magnetised neutron star. GRBs from ...

Wednesday, Apr 24th, 2024 - In the darkest corners of the planet, where the light of the Sun never touches, eerie glows can yet be found, illuminating the shadows. This is bioluminescence, a remarkable ability that has evolved, separately, at least 94 times throughout the history of life on Earth. Bioluminescent organisms can harness chemical reactions to produce a glow of their own, a tool used for various purposes by the different creatures ...

Wednesday, Apr 24th, 2024 - A NASA spacecraft launched almost five decades ago is once again sending data back to scientists after going dark last year, the space agency reported this week. In an April 22 press release , NASA announced that a team of experts had remotely repaired a computer problem in Voyager 1, a probe launched in 1977 to study planets and moons in the outer reaches of our solar system that is now more than 15 billion miles ...