Some COVID Patients Need Amputations to Survive

In late summer Candice Davis and her brother, Starr, returned to South Philadelphia from a trip to Mexico, and Davis quickly knew that something was wrong. Both she and Starr felt ill, and both subsequently tested positive for COVID-19. But Starr, who had been immunized, experienced only mild flulike symptoms and felt better within a … Read more

This map of distant galaxies could help untangle the mystery of dark energy | Science

A new cosmic survey project known as the Dark Energy Spectroscopic Instrument (DESI) today released its first results: the most detailed 3D map of the universe to date, which shows the locations of 400,000 galaxies up to distances of 10 billion light-years. The map is the fruit of the project’s first 7 months of operation. … Read more

Solar eclipses: When is the next one?

A solar eclipse occurs when the moon gets between Earth and the sun, and the moon casts a shadow over Earth. A solar eclipse can only take place at the phase of new moon, when the moon passes directly between the sun and Earth and its shadows fall upon Earth’s surface. But whether the alignment … Read more

Astronomers Have Found Another Possible ‘Exomoon’ beyond Our Solar System

And then there were two—maybe. Astronomers say they have found a second plausible candidate for a moon beyond our solar system, an exomoon, orbiting a world nearly 6,000 light-years from Earth. Called Kepler-1708 b-i, the moon appears to be a gas-dominated object, slightly smaller than Neptune, orbiting a Jupiter-sized planet around a sunlike star—an unusual … Read more

Why cat-like creatures vanished from North America for 6 million years

By Chelsea Whyte Ken Barber/Alamy; Schankz/Shutterstock; Advia Image/Shutterstock; Koktaro/Shutterstock LOOKING out over an expanse of scrubby sagebrush, it is hard to imagine that the high desert in eastern Oregon was once home to large creatures that resembled sabre-toothed cats. The land here is mostly dry and grassy, punctuated by sharp hills. There isn’t a lot … Read more

Not so lightweight: Hamsters handle their drink better than elephants

Feedback is our weekly column of bizarre stories, implausible advertising claims, confusing instructions and more Humans 12 January 2022 Josie Ford Boozing hamsters Feedback has a soft spot for hamsters, whose hoarding and nesting behaviours are similar to our own. Our feeling of oneness only increases with an article in The Atlantic forwarded to us … Read more

What Is Wormhole Theory? | Space

The wormhole theory postulates that a theoretical passage through space-time could create shortcuts for long journeys across the universe. Wormholes are predicted by the theory of general relativity. But be wary: wormholes bring with them the dangers of sudden collapse, high radiation and dangerous contact with exotic matter. Wormhole theory Wormholes were first theorized in … Read more