Joe Palca
Stories
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On Its Way To Mercury, This European Space Probe Just Swung By Venus
To reach the innermost planet in our solar system, this European space probe needs a little help from the gravity of Venus.
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National
Pfizer Says A 3rd Dose Of Its COVID-19 Vaccine Boosts Immunity
Pfizer presented data to investors showing that a third dose of its COVID-19 vaccine boosts immunity. The company believes everyone will need a boost eight to 12 months after receiving a second shot.
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Health
COVID Vaccine Latest: J&J Warning Label And Israel Starts Booster Dose
The FDA ordered Johnson and Johnson to put a label on its COVID-19 vaccine warning of the risk of a neurological disorder. Israel is offering booster shots to individuals who are immune compromised.
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National
Pfizer Is Pursuing A Booster Shot And New Vaccine Targeting The Delta Variant
Federal health officials say a booster isn't currently needed for anyone fully vaccinated against COVID-19. But testing is underway to determine what is the best boosting strategy should it be needed.
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Health
Novavax Says Its COVID Vaccine Is Extremely Effective
In a large-scale study, Novavax said its vaccine was completely effective against the original coronavirus strain and also effective against some variants. It works differently than other vaccines.
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Health
The Results Are In For Novavax's Vaccine And They Are Impressive
A highly anticipated study of a COVID-19 vaccine has finally produced results — and the results are good, very good. The vaccine is made by the Maryland biotech company Novavax.
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Health
New Evidence Suggests COVID-19 Vaccines Remain Effective Against Variants
An analysis of blood from people who had received the Johnson & Johnson COVID-19 vaccine found a lower level of neutralizing antibodies against viral variants but a strong response involving T cells.
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Science
NASA's Juno Spacecraft Will Get A Close Look At Jupiter's Moon On Monday
NASA's Juno spacecraft will travel to 645 miles above the surface of the solar system's largest moon, Ganymede, on Monday.
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Health
A New Type Of COVID-19 Vaccine Could Debut Soon
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.
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Health
A Vaccine Patch Could Someday Be An Ouchless Option
Scientists around the world are working on a way to inject vaccines painlessly. The trick is to make the needles so small. they don't interact with the nerve endings that signal pain.