内容摘要：“It’s the reason we are like a beacon for the rest of the world,” he said. “I think that undermining those things, cutting those things is not only a bad short-term view but a horrendous long-term view.”

“It’s the reason we are like a beacon for the rest of the world,” he said. “I think that undermining those things, cutting those things is not only a bad short-term view but a horrendous long-term view.”

Mercury astronaut John Glenn was 77 when he returned to orbit on a short shuttle flight in 1998. But he’d been gone from NASA for decades and was close to wrapping up his Senate career.Even a pair of 90-year-olds have flown to space, but only on 10-minute up-and-down hops by Jeff Bezos’ Blue Origin rocket company.

Pettit, an engineer who still feels “like a little kid inside,” focused on his astrophotography while at the space station, capturing auroras, comets and satellites streaking off in the distance.He also conducted a slew of physics experiments in his spare time, like blowing and stacking bubbles, and forming a perfect ball of honey on a spoon with peanut butter, in order to share the experience with others.“I’ve got a few more good years left,” Pettit said. “I could see getting another flight or two in before I’m ready to hang up my rocket nozzles.”

The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group and the Robert Wood Johnson Foundation. The AP is solely responsible for all content.reaches its peak, it will be spring’s first chance to see

The Lyrids have surprised skygazers in the past with as many as 100 meteors per hour, but it’s not predicted to be as active this time around.

During Tuesday morning’s peak, expect to see around six meteors per hour, said Thaddeus LaCoursiere, planetarium program coordinator at the Bell Museum in St. Paul, Minnesota.“Any of these outbreaks we’re seeing can easily be prevented by increasing the rate of vaccination in the community,” he said. “If we can maintain 95% of people vaccinated, we’re not going to see this happening in the future. And we’ve slipped well below that level in many parts of the country.”

Vaccination rates have declined nationwide since the COVID-19 pandemic, and most states are below the— the level needed to protect communities against measles outbreaks.

Not usually. People who are vaccinated are considered protected against measles for their lifetime.Health care providers can test for antibodies and give boosters if needed.