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Russian cosmonaut Yuri Gagarin

People in Science

Yuri Gagarin

Yuri Gagarin was a Soviet cosmonaut famous for being the first human ever to enter space, spending 108 minutes orbiting the globe in the Vostok 1 spacecraft.

Sputnik 1

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Sputnik 1

How did the universe begin?

Question

How did the universe begin?

Where do meteorites come from?

Question

Where do meteorites come from?

astronaut on moon

Space

NASA is going back to the moon but most people in the US don't want to

News

Definition

Tiangong space station

LightSail 2

Space

SpaceX is about to launch a sail propelled through space by sunshine

News

Mercury

Space

How Mercury and Venus can guide our hunt for alien life on exoplanets

Features

Don't miss: men on the moon, robots in orbit and museums in the street

Space

Don't miss: men on the moon, robots in orbit and museums in the street

Culture

A comet in the solar system

Space

ESA plans triple spacecraft to lurk in wait for a speedy comet

After the success of Rosetta, the European Space Agency plans to launch three spacecraft to wait in space until a speedy comet from the edge of the solar system passes by

News

People in Science

Albert Einstein

Space

OSIRIS-REx spacecraft captures closest ever image of asteroid Bennu

News

Definition

Cosmic microwave background

Definition

General relativity