Physicists Argue That Black Holes From the Big Bang Could Be the Dark Matter

Long-time Slashdot reader fahrbot-bot quotes Quanta magazine:
It was an old idea of Stephen Hawking’s: Unseen “primordial” black holes might be the hidden dark matter. It fell out of favor for decades, but a new series of studies has shown how the theory can work… Their very blackness makes it hard to estimate how many black holes inhabit the cosmos and how…

2020 Arctic sea ice minimum 2nd lowest on record

On September 15, 2020, Arctic sea ice reached its annual minimum extent, the 2nd-lowest on record. The Arctic region in general is warming 3 times faster than the rest of the planet. Source: https://earthsky.org/earth/arctic-sea-ice-2020-minimum-2nd-lowest-on-record…