A lack of hard data on the effects of radiation on astronauts — and how to mitigate the health threat — could set back NASA's plans to send people to Mars in the 2030s, experts tell Axios.
Why it matters: Radiation, particularly in the form of high-energy galactic cosmic rays, can increase an astronaut's risk of developing cancer, cardiovascular issues and even cognitive deficits.
The month of August is usually lauded as one of the best times of year for skywatching, but this year the Moon will blot out our view of the Perseid meteor shower — typically one of the best.
Details: During the Perseids' peak from Aug. 12 to 13, the bright Moon will drown out all but the brightest meteors even for those in areas relatively free of light pollution.
SpaceX is offering up its Falcon 9 rockets for regular rideshares to orbit for small payloads, the company announced Monday.
Why it matters: Usually small satellites are forced to hitch rides on a Falcon 9 with a larger payload bound for orbit, but these rideshares won't need to wait on a primary mission for launch.
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