467336 (2002 LT38) is, if rounding up a bit, twice the size of the infamous sunken passenger liner, the Titanic, according to NASA. But we're in no danger of it hitting the Earth.
Scientists have used stem cells to create structures that resemble human embryos in the lab, in a first that has prompted calls for stricter regulation in the rapidly advancing field.
This is thanks to NASA's new Message in a Bottle initiative, the public can have their name engraved on a microchip in its Europa Clipper spacecraft as it heads to Jupiter's moon.
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Asteroid 2020 DB5 has no relation to the James Bond car the Aston Martin DB5, but this 850-meter asteroid is set to pass Earth soon, according to NASA.