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How to watch Shark Week

This is a week of dueling shark-athons on television. A biologist advises viewers to take what they see with a large grain of sea salt.

Video: Moon hoax not

SG Collins explains why the Apollo moon landings on the moon in the late 1960s and early ’70s couldn’t have been faked.

Today in science: 1st footsteps on moon

Today is the 48th anniversary of humanity’s historic first steps on the moon. The story in pictures, here.

A shadow-band project for August 21

Shadow bands are elusive ripples of alternate light and dark, flitting over the ground or the sides of buildings during a total solar eclipse. How to take part in an International Shadow Band Campaign during the August 21 eclipse.

Maryam Mirzakhani, mathematician, dies at 40

She was an outstanding mathematician and first woman to receive the prestigious Fields Medal. Maryam Mirzakhani died on July 14 after a several-year battle with breast cancer.

Have you seen the Mayak satellite?

On July 14, an amateur group in Russia launched a small satellite called Mayak. They said it would become the “brightest shooting star” in the sky. Why’d they do it? Here’s how to look for it.

Soar over Pluto and Charon

To celebrate the 2-year anniversary of New Horizon’s flyover of the Pluto system, NASA released these 2 cool videos. Sail over the surface of Pluto and its large moon Charon.

Strange radio signals from nearby star

A 10-minute observation in May of nearby star Ross 128 yielded a peculiar radio signal. Further observations planned for Sunday night.

Last survivors on Earth?

Scientists say they’re likely to be tardigrades – tiny, 8-legged marine creatures – which can survive until the sun dies, long after we humans have disappeared.

Top tips for binocular stargazing

Whether you’re a beginning stargazer or a veteran of thousands of starry nights, binoculars can be your best friend.