Joe Palca
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NASA's Juno spacecraft traveled to 645 miles above the surface of the solar system's largest moon, Ganymede, on Monday. -
Instead of putting genetic instructions into people whose cells then make a viral protein, the vaccines from Novavax, Medicago and Sanofi carry a spike protein payload. -
Getting a shot is a pain. But scientists are working on a way to inject a vaccine without the ouch. The solution: a patch that applies an array of microscopic needles and feels like Velcro.
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Using two different COVID-19 vaccines is a bit like giving the immune system two pictures of the virus, maybe one face-on and one in profile. -
Researchers are exploring a mix-and-match strategy for vaccinating people against COVID-19. That means using two different kinds of vaccines instead of the same brand of vaccine twice.
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Researchers are trying to come up with tests that can be performed using a blood sample that will determine not only whether a COVID-19 vaccine will work but also for how long. -
Fresh off the first powered flight on another world, NASA's Mars 2020 mission has managed another key first that could pave the way for future astronauts. -
The tiny helicopter took off and hovered briefly — the first such flight on another planet. The Perseverance rover kept tabs on the mission from a viewing point about 60 yards away. -
Ingenuity is a tissue box sized helicopter that hovered in the super thin Martian atmosphere, took some pictures and landed safely.
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The FDA and the Centers for Disease Control and Prevention called for the pause in the use of the Johnson & Johnson vaccine — following reports of blood clots in six women who received the vaccine.
