They’re sliding closer together over the next few weeks. Turning to the night sky – Mars, Jupiter, and Saturn are still aligned in the 6:00 am predawn sky in the east. The discovery may yield new insight into star formation in the Milky Way. Higher proportion of Neon-21 indicates the silicon carbide was drifting in space for a very long time before being embedded in a hunk of our solar system’s detritus left over after the solar system formed. These particles got swept up in planet formation and/or hitched a ride to Earth on asteroids that have been in circulation ever since.ĭating was determined from an element, Neon-21, which is derivative of cosmic ray-bombarded silicon carbide. These remnants are left over from ancient stars that populated this region of the galaxy prior to the birth of our sun, some 4.5 billion years ago. Stardust discovered in a meteorite that landed in Australia more than 50 years ago is up to three billion years older than our solar system.
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