Stardust Created 7 Billion Years Ago Is the Oldest Stuff on Earth

NASA/JPL-Caltech/Harvard-Smithsonian CfA
NASA/JPL-Caltech/Harvard-Smithsonian CfA

Between 5 and 7 billion years ago, a dying star shot an explosion of particles through space. Some of that stardust ended up in a meteorite that landed in Murchison, Australia, in 1969. And according to new research, it's officially the oldest known solid material on Earth.

For the new study, published in the journal Proceedings of the National Academy of Sciences 30 years after the research began, scientists pulverized fragments of the meteorite to determine its age. The resulting paste-like substance reportedly smelled like "rotten peanut butter." The strange aroma "comes from byproducts of the breakdown of the abiotic organic molecules—molecules that didn't form from life—in the Murchison meteorite," lead author Philipp R. Heck, a curator at Chicago's Field Museum, tells Mental Floss.

Heck used acid to further break down the rock and isolate the grains of stardust, which are smaller than the period at the end of this sentence. To date the particles, the team measured neon isotopes that formed when cosmic rays hit the solid matter making up the stardust. The older the stardust is, the more cosmic rays it has been exposed to, so the amount of neon isotopes it contains can be used to estimate its age. Heck compares the method to collecting water in a bucket to determine how long it's been raining.

The team found that the meteorite contained particles older than 5.5 billion years and possibly as old as 7 billion years. The Earth has only been around for 4.5 billion years, and the sun for 4.6 billion. The formation of this super-old stardust is believed to have occurred during an "astral baby boom," according to a statement released by the Field Museum, in which an uptick in stellar activity literally created the matter that shapes the world we know today.

When the grains formed, "most stars that we see tonight in the sky didn’t exist," Heck says. "The bright stars that would have been shining through our galaxy were the previous generation of stars, our parent stars. [They] formed the elements that later became fuel and ingredients for the solar system, Earth, and us. These stars formed the material that we are made out of."

While the grains in the Murchison meteorite are the oldest solid material on the planet, many of the gases on Earth are much older. Some of the hydrogen in your body, for example, may have originated with the Big Bang 13.7 billion years ago.

The ChopBox Smart Cutting Board Has a Food Scale, Timer, and Knife Sharper Built Right Into It

ChopBox
ChopBox

When it comes to furnishing your kitchen with all of the appliances necessary to cook night in and night out, you’ll probably find yourself running out of counter space in a hurry. The ChopBox, which is available on Indiegogo and dubs itself “The World’s First Smart Cutting Board,” looks to fix that by cramming a bunch of kitchen necessities right into one cutting board.

In addition to giving you a knife-resistant bamboo surface to slice and dice on, the ChopBox features a built-in digital scale that weighs up to 6.6 pounds of food, a nine-hour kitchen timer, and two knife sharpeners. It also sports a groove on its surface to catch any liquid runoff that may be produced by the food and has a second pull-out cutting board that doubles as a serving tray.

There’s a 254nm UVC light featured on the board, which the company says “is guaranteed to kill 99.99% of germs and bacteria" after a minute of exposure. If you’re more of a traditionalist when it comes to cleanliness, the ChopBox is completely waterproof (but not dishwasher-safe) so you can wash and scrub to your heart’s content without worry. 

According to the company, a single one-hour charge will give you 30 days of battery life, and can be recharged through a Micro USB port.

The ChopBox reached its $10,000 crowdfunding goal just 10 minutes after launching its campaign, but you can still contribute at different tiers. Once it’s officially released, the ChopBox will retail for $200, but you can get one for $100 if you pledge now. You can purchase the ChopBox on Indiegogo here.

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How to Watch SpaceX’s Historic Astronaut Launch Live

NASA astronauts Doug Hurley and Bob Behnken make their way to the SpaceX Falcon 9 rocket with the Crew Dragon spacecraft on launch pad 39A at the Kennedy Space Center on May 30, 2020 in Cape Canaveral, Florida.
NASA astronauts Doug Hurley and Bob Behnken make their way to the SpaceX Falcon 9 rocket with the Crew Dragon spacecraft on launch pad 39A at the Kennedy Space Center on May 30, 2020 in Cape Canaveral, Florida.
Joe Raedle/Getty Images

After scrubbing its original launch on May 27 due to bad weather, SpaceX will attempt to make history yet again today (May 30) when it launches its first crewed spacecraft from Cape Canaveral, Florida, at 3:22 p.m. EDT. Powered by a Falcon 9 rocket, the Crew Dragon spacecraft will transport NASA astronauts Doug Hurley and Bob Behnken to the International Space Station, marking the company's first-ever crewed mission and the first crewed launch from the U.S. since 2011. If you want to watch the momentous event from home, there are plenty of ways to stream it live online.

Both SpaceX and NASA will be hosting livestreams of the May 30 launch. NASA's webcast kicks off at 11 a.m. EDT today with live looks at the Crew Dragon and Falcon 9 rocket at the Kennedy Space Center. The feed will continue streaming until the afternoon of Sunday, May 31, with the spacecraft set to dock at the International Space Station at 10:29 a.m. EDT. You can catch the coverage on NASA's website, its social media channels (including YouTube), or on the NASA TV channel through cable or satellite. SpaceX's stream will be broadcast on the company's YouTube channel. (You can watch the video below).

Several television networks will be covering the event (check your local listings), and ABC News Live will partner with National Geographic to air "Launch America: Mission to Space Live" at 3 p.m. EDT.

The launch has been scheduled down to the minute, but SpaceX still has time to change that depending on the weather. Wednesday's launch was canceled less than 17 minutes before liftoff, and SpaceX founder Elon Musk has already tweeted that there's a 50 percent chance that weather could prove problematic once again. If today's launch doesn't happen according to plan, there is another window set aside for a third attempt tomorrow, Sunday, May 31, at 3 p.m. EDT, with CNN reporting that the odds of cooperative weather being slightly higher—about 60 percent—for tomorrow.

This story has been updated.