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We Only Spotted This Asteroid Hours Before It Fell to Earth. Here’s Why That’s Good

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On 11 March 2022, at around 9:20 pm UTC, a small asteroid entered Earth’s atmosphere. This is not unusual. Space rocks enter Earth’s atmosphere all the time. What makes this asteroid so amazing is that an astronomer spotted it before it made its rendezvous with atmospheric entry. It’s named 2022 EB5, and it’s only the … Read more

COVID Vaccines Can Be Safe for People with Prior Allergic Reactions

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The Omicron-driven COVID surge has caused considerable upheaval during this pandemic winter. Despite the availability and efficacy of COVID vaccines, many people with a history of suspected allergies to the first mRNA COVID vaccine dose—reactions such as hives, swelling, shortness of breath and/or low blood pressure—have not gotten their full series. Their fear is understandable. … Read more

Omicron: How do prior infections affect covid-19 risk from new variants?

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Many people all over the world have now had one infection with covid-19 – how does that affect their future chance of a second round with the coronavirus? Health 8 December 2021 By Clare Wilson A healthcare worker does tests that detect antibodies to the coronavirus Peter Kovalev/TASS via Getty Images For the past year, … Read more