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Updated: 8 hours 4 min ago
What Caused This Seven-Mile Scar in Australia’s Outback?
A man scouring Google Earth found a mysterious scar in the Australian outback. And now scientists know what caused it
Categories: Astronomy
When Is Too Much Teeth Whitening Harmful to Oral Health?
Using teeth-whitening treatments to achieve a brighter smile may be appealing, but experts say overdoing it could cause lasting damage
Categories: Astronomy
Lightning on Earth Knocks ‘Killer Electrons’ Loose in Orbit
High-energy electrons released by storms on Earth can threaten satellites and spacecraft
Categories: Astronomy
