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Apex predators, like the Tyrannosaurus rex, eventually arose from smaller-bodied tyrannosauroid dinosaurs called Khankhuuluu mongoliensis, the study's researchers said.

A "sneaky" invasive species that has a potentially deadly sting can be found in more than a dozen states, according to experts.

It marks the first time Arsia Mons has been imaged on the planet's horizon, NASA said.

A private lunar lander from Tokyo-based company ispace is closing in on the moon, aiming for a touchdown in the unexplored far north with a mini rover.

Two Chinese researchers were charged with trying to smuggle strains of a fungus called Fusarium graminearum into the U.S.

It had not been thought possible that such tiny, weak stars could provide the conditions needed to form and host huge planets.

Scientists have unlocked one of the solar system's many secrets from an unexpected source: a planetarium show.

If you're seeing a thick haze outside your window, it's likely air pollution. Here's how to find out what the air quality is near you.