Asteroids: The ultimate guide to killer space rocks

Asteroids are small solar system bodies (SSSBs) that fall between the size of a planet and the size of a meteoroid. Ranging from just a few hundred centimetres to a few hundred kilometres in diameter, asteroids are made of rocks and … Continued

Asteroids hitting Earth

Is an asteroid going to hit Earth?

It’s Asteroid Day, and our friends at All About Space magazine have asked asteroid researcher Professor Alan Fitzsimmonds 5 questions about the threat space rocks pose to life on Earth, how we detect potential Earth-trajectory planet-killers and what we can do about them. Here … Continued

Black hole

Top 5 Facts: Black holes

A black hole is a region of space containing, at its centre, matter compressed into a point of infinite density called a singularity (an area where spacetime curvature becomes infinite), which itself is surrounded by a sphere of space where the … Continued

Solar system

Top 5 Facts: The solar system

The solar system formed about 4.6 billion years ago, when part of a giant molecular cloud experienced a gravitational collapse. The centre became the Sun, which comprises more than 99 per cent of the solar system’s total mass. The rest of … Continued

Space Shuttle

Why was the Space Shuttle retired?

Sadly the Space Shuttle turned out to be just too dangerous. The disasters that destroyed the Challenger shuttle on launch in 1986, and the Columbia on re-entry to Earth’s atmosphere in 2003, were both caused by damage to the main orbiter … Continued

Dark matter

What exactly is dark matter?

By measuring the motion of stars in our galaxy and others, astronomers can tell that galaxies in general contain much more mass than can be accounted for by their visible stars, gas and dust. In fact, normal, or baryonic, matter (essentially … Continued


Is there life on Mars?

Mars looks to be the best candidate for our next home, but can anything currently survive on the surface of the Red Planet? Find the answer with our latest video! Find the answer to more curious questions in How It Works magazine. Order it … Continued


NASA’s Hubble Space Telescope celebrates 25th anniversary

On 24 April 1990, the Hubble Space Telescope was launched into orbit aboard the Space Shuttle Discovery, but straight away it was obvious that something was wrong. The images being sent back were disappointingly blurry, and it was soon discovered that a tiny … Continued


Can anything withstand the immense heat of the Sun?

The Sun is surrounded by a layer of plasma which extends millions of miles into space, in some places reaching up to 3 million degrees Celsius (5.4 million degrees Fahrenheit). There are no known materials that can exist as solids, … Continued


Top 5 Facts: The Moon

1) Nobody owns it There are US flags and Soviet pennants on the Moon but they are purely symbolic. The Outer Space Treaty gives the Moon the same status as international waters. 2) Man in the Moon The stark contrasts … Continued

Solar eclipse

Solar eclipse 2015: The facts you need to know

On 20 March, the UK will experience one of nature’s most amazing spectacles, a solar eclipse. This happens when the Moon moves in front of the Sun for a few minutes, blocking its light and underneath the Moon’s shadow darkness falls. … Continued


Top 5 Facts: Venus

1) Venus has phases like a moon When closest to the Earth, Venus appears bright and crescent-shaped. When it is further away, the planet is dim and round. 2) It rotates backwards Venus has a retrograde, or west to east, rotation. This … Continued


Discover how astronauts survive the perils of space

Ever wondered what life in space is actually like?   Since Yuri Gagarin became the first man to leave earth in 1961, the life of an astronaut has changed drastically.   The Book of Astronauts is the latest digital book … Continued

Future Of Space Travel

Discover the next 500 years of space travel

How It Works has teamed up with All About Space magazine to bring you a complete guide to the future of space travel. Discover where we could visit in the next 5 to 500 years and how we will get there, with … Continued


What lies between the galaxies?

Intergalactic space is what lies between the galaxies and many experts believe it to be filled with some kind of super-thin gas. Then again, there is also the theorised dark matter, the mysterious substance that emits neither light nor radiation … Continued

John W. Young on the Moon

Who owns space?

The 1967 Outer Space Treaty explicitly forbids any government from claiming ownership of any celestial object or the empty space in between them. 100 nations have signed and ratified this treaty, including all those currently with a space programme. The … Continued

pleiades gendler stars

Top 5 Facts: Stars

1) Black dwarf It takes 10 trillion years for a white dwarf to cool off entirely. Our galaxy isn’t even old enough for a black dwarf to physically exist yet, but it lies in our Sun’s future. 2) Closing the curtains … Continued

International Space Station

What does the ISS weigh?

The smart-aleck answer is virtually nothing, as in low Earth orbit gravity is nearly zero, meaning the International Space Station has mass but only negligible weight (defined as the force on an object due to gravity). However, if the ISS … Continued

Load More