Space

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It’s mind-blowing!

Astronomers have detected the most powerful, most distant and most perplexing collision of black holes yet using gravitational waves. Of the two behemoths that fused when the Universe was half its current age, at least one — weighing 85 times as much as the Sun — has a mass that was thought to be too large to be involved in such an event. And the merger produced a black hole of nearly 150 solar masses, the researchers have estimated, putting...

Monitoring whales from space

Scientists have found that studying high-resolution images of whales from space is a feasible way to estimate their populations.A team, led by British Antarctic Survey (BAS), compared satellite images to data collected from traditional ship-based surveys. Reported this week in the journal Scientific Reports, this study is a big step towards developing a cost-effective method to study whales in remote and inaccessible places, that will help scientists to monitor population changes and understand their behaviour. The results show that satellite-estimated...

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