... ic, while the other hemisphere remains solid - creating a circular 'iris' of lava surrounded by solid rock. This is called a hot eyeball planet. ...

... ic, while the other hemisphere remains solid - creating a circular 'iris' of lava surrounded by solid rock. This is called a hot eyeball planet. ...

Big Bang, conceptual image. Computer illustration representing the origin of the universe. The term Big Bang describes the initial expansion of all the matter in the universe from an infinitely compact state 13.7 billion years ago. The initial condit...

Artwork conceptualising the expanding and accelerating Universe. Since the 1990s, astronomers have known that the Universe is not only expanding, but that the rate of expansion itself is accelerating. This is postulated to occur due to a mysterious d...

Artwork depicting the change of the planet Earth. The left side of the illustration shows the Earth shortly after it formed some 4600 million years ago. The right side shows the planet as it is today....

Animation of a flight into a dense cloud of dust within a bright emission nebula. Emission nebulae glow pink due to ionisation of the hydrogen gas they contain by the radiation from hot young stars recently born within them. The densest regions of ga...

... l pulled from the red dwarf can be seen around the white dwarf. At the point where the trail of material meets the disc is a hot spot of compressed glowing gas. Systems such as this produce novae, outbursts which suddenly increase the apparent bright ...

Artwork of dust devils on the surface of Mars. Dust devils are tall and short-lived whirlwinds. They form when a pocket of hot air near the surface rises quickly through cooler air above it to create an updraft of rotating air. Dust devils were first...

Artwork of dust devils on the surface of Mars. Dust devils are tall and short-lived whirlwinds. They form when a pocket of hot air near the surface rises quickly through cooler air above it to create an updraft of rotating air. Dust devils were first...

Artwork of dust devils on the surface of Mars. Dust devils are tall and short-lived whirlwinds. They form when a pocket of hot air near the surface rises quickly through cooler air above it to create an updraft of rotating air. Dust devils were first...