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Save on fitness trackers from Garmin, Samsung, and Fitbit with these huge Prime Day deals — but hurry, Prime Day ends tonight!

We’ve rounded up the best binocular deals on the market to help you save money — with options for all budgets and experience levels.

Astronomers are proposing a new, more quantitative definition of what makes a planet. The new definition looks more directly at the object’s mass — but it would still leave Pluto out of the running.

A new study examines fossil teeth of the Taung Child to hone in on its age.

New simulations suggest that a 9-mile-thick layer of diamonds may lurk deep below the surface of Mercury. The gems almost certainly can’t be mined for bling — but they may help solve some of the planet’s biggest mysteries.

The ESM3 model can ‘write’ new proteins from scratch, opening up new possibilities for synthetic biology.

A coastal taipan named Cyclone recently delivered three times the average amount of venom for its species in one go, setting a new record.