Space rocks and asteroid dust are pricey, but these aren’t the most expensive materials used in science

After a journey of seven years and nearly 4 billion miles, NASA’s OSIRIS-REx spacecraft landed gently in the Utah desert on the morning of Sept. 24, 2023, with a precious payload. The spacecraft brought back a sample from the asteroid Bennu. Roughly half a pound of material collected from the 85 million-ton asteroid (77.6 billion kg) will help scientists learn about the formation of the solar system, including whether asteroids like Bennu include the chemical ingredients for life. NASA’s mission was budgeted at US$800 million and will end up costing around $1.16 billion for just under 9 ounces of sample (255 g). But is this the…

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Tau Herculid Meteors Surprise and Delight

We touch on the highlights of the memorable Tau Herculid meteor shower and also report on the recent outburst of the recurrent nova U Scorpii. The post Tau Herculid Meteors Surprise and Delight appeared first on Sky & Telescope.

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Venus Farewell, Moonless Skies for the Quadrantids

Venus presents a stunning crescent at dusk before switching over to the morning sky early next month. After dodging the Moon for the Geminids, it’s dark skies all around for the Quadrantid meteor shower. The post Venus Farewell, Moonless Skies for the Quadrantids appeared first on Sky & Telescope.

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Precious Hours with the Geminids

At first glance, the annual Geminid meteor shower appears to be on a collision course with a bright Moon. But a closer look reveals a happy window of dark skies. The post Precious Hours with the Geminids appeared first on Sky & Telescope.

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Fine Show Expected from the Perseid Meteor Shower

With no interference from the Moon, this year’s Perseid meteor shower should be excellent. Find a dark location and enjoy every flash. The post Fine Show Expected from the Perseid Meteor Shower appeared first on Sky & Telescope.

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