Gravitational waves that span thousands to billions of miles can be obscured in our detectors by the smallest of quantum fluctuations that permeate space-time. But now, researchers at the Laser Interferometer Gravitational-Wave Observatory (LIGO) have found a way to beat this quantum noise....
During the past 500 million years – the time when animals and land plants evolved – the average surface temperature of the planet varied more widely and got even hotter than previously thought.
The mean global surface temperature over this time was 24°C (75°F)...
"Every time more of these are launched... we see less and less of the sky."Sky MoreElon Musk's Starlink communications satellites aren't just physically junking up Earth's orbit — according to researchers, they're increasingly interfering with radio telescopes.As the BBC reports, the Netherlands Institute for Radio Astronomy (ASTRON) is calling out the latest generation of SpaceX internet satellites for emitting signals at higher frequencies than...
