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Today in science: Kennedy’s moon speech

On May 25, 1961, John F. Kennedy gave a stirring speech to a joint session of Congress, inspiring a nation to land humans on the moon with a decade.

What is a supermoon?

By at least 1 definition, the year 2017 has 4 supermoons. Three are new moons and not visible in our sky. The only full moon supermoon of 2017 will come in December.

The story behind the 2017 eclipse stamp

A 1st-of-its-kind stamp that changes when you touch it, commemorating the August 21, 2017 total solar eclipse. Fred Espenak Рwhose photos are on the new stamp Рtells the story.

Humans and pufferfish share teeth genes

Our teeth evolved from the same genes that make the bizarre beaked teeth of the pufferfish, according to new research.

Did this human species coexist with our ancestors?

Fossil remains of Homo naledi found in a South African cave might be the first evidence of another species of hominin coexisting with the first humans in Africa.

Lake Baikal: Earth’s deepest, oldest lake

Controversy surrounds construction of hydropower stations on a river that feeds deep, ancient Lake Baikal.

Eta Aquarid over Mount Bromo

Cool short video of an early morning Eta Aquarid meteor over Mount Bromo in Indonesia, by Justin Ng. Take a few seconds and enjoy!

Watch 200th spacewalk Friday

Watch 2 astronauts perform landmark 200th ISS spacewalk on Friday, May 12. Live coverage begins at 6:30 a.m. EDT (10:30 UTC). Links to viewing here.

Imaging modern brains to study Stone Age thinking

We can’t observe brain activity of extinct human species. But we can observe modern brains doing things that our distant ancestors did for clues to how their brains worked.

Asteroid 2014 JO25: What we learned

This article from NASA’s Center for Near-Earth Object Studies provides fresh details on the closest approach by a large asteroid since 2004 … and shows you how science works.