The most affordable laptops on the market got even cheaper for Prime Day, which is ending soon. We've got discounts up to 47% on ChromeOS portables from Lenovo, HP, Asus and more.

Kareta says that come October, when the comet gets closer to Earth, "under dark skies ... with a big telescope and some ...

I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known. But experts caution we need more data.