When something is as incredibly difficult to get to as Mercury, it is extremely tricky to study. Which is one of the reasons why in all of human history, there have only ever been 2 missions to Mercury, with just one more on the way....

Why shouldn't we throw garbage into the sun? Find out in this return of our series 'Astrum Answers'.

Is it a coincidence? Or is something else at play here?

Verona Rupes, found on Uranus' moon Miranda, is 20km tall! But because Miranda is so small, and its gravity so weak, would you survive falling off it? Astrum answers!

Everything you could want to know about the December 2020 Great Conjunction of Saturn and Jupiter. Astrum merch now available!

Astrum investigates some examples of the longest and shortest years that we know of. The differences are mind-boggling!

What's happening in 2020 with space agencies across the world?

How big do you think our solar system is? Up until Pluto? A bit beyond? How big can other solar systems get? Astrum answers!

What new findings have we discovered about our favourite little world, Pluto?

Almost everything you could want to know about the closest planet to the Sun, Mercury. Real HD photos and videos taken by the MESSENGER probe. We discuss the orbit, climate, geographical features, and general physical characteristics or...

In 2017, Cassini ended its mission by disintegrating in Saturn's atmosphere. What were the final images it ever took?

Hubble doesn't just look at distant nebula and galaxies, but has also observed celestial bodies and events in our own solar system. So what has it seen? Images from Hubble / NASA / ESA.

Saturn's moon, Titan, is the only other body in the solar system that can support liquid on its surface. But not liquid water, liquid methane. What did NASA's Cassini discover about the methane lakes of Saturn's moon, Titan?

Mercury will be transiting the Sun on the 11th November 2019. What time will it be? How can I see it for myself? And why doesn't a transit happen much more regularly?

How do scientists plan to get astronauts to Mars when space radiation is so strong? What can be done about it? Astrum Answers!

While tiny, Earth now has a second moon, or natural satellite, named 2020 CD3. So, will we have to rewrite the text books?

NASA's Dawn spacecraft was the first spacecraft to orbit two extraterrestial bodies, Vesta and Ceres. But what did it do and discover while it was there?

The Sungrazer comets that were discovered minutes before they vapourised.

Sun is obviously the hottest thing in our Solar System, but it is a mere candle when compared to several other stars and stellar phenomena, particularly supernova. A supernova is a transient event that marks the last evolutionary stage...

Asteroids are small, rocky objects that orbit the sun, just like the rest of the planets and celestial bodies in our solar system. Although asteroids are present throughout the solar system, most of them live in the asteroid belt—a...

Since Earth completes one revolution around the sun in 1 year, it would make sense to think that after the completion of year, Earth would be exactly at the same spot where it was at the beginning of the year, wouldn't it? But is it...

The concept of the cosmic calendar was popularized by famous astronomer Carl Sagan to help people understand just how far apart on a time scale events in the Universe are. Basically, he arranged the 13.8 billion years of the Universe’s...

The rotation of the planet around its axis can be generally of two types: prograde and retrograde. Prograde rotation indicates that the motion is in the same direction as the Suns rotationwhich is counter-clockwiseif youre looking down...

Mercury and Venus have no moons because of their close proximity to the Sun. Any moon orbiting around them is likely be swallowed by the mammoth gravitational pull of the mighty Sun. All planets except for Mercury and Venus have moons....