SPL RF Mar 2018

Diagram showing the interior of the Sun. The solar interior is composed of a core (central 30%) a radiative zone outside this, and finally a convectiv...

Diagram showing the theoretical interior of the ice giant planet Neptune. It probably looks very similar to the interior of Uranus. At the very centre...

Image comparing the size of Earth with its single Moon. The Moon is 27% the size of its parent, which it orbits once every 27.3 days. Despite its dimi...

Image comparing the size of Earth (left) with the planet Uranus. Uranus is the seventh planet from the Sun, with an average distance from it of 19.2 t...

Image comparing the size of Earth (left) with the planet Saturn. Saturn is the sixth planet from the Sun, with an average distance from it of 9.4 time...

Illustration of a black dwarf. A black dwarf is the fate that awaits all white dwarfs. The latter are the remains of the cores of dead stars, such as...

Diagram showing the interior of the Earth's Moon. The outermost layer, the crust, is about 45 miles (70 km) thick. This is thicker than the Earth's cr...

The Earth will start to become uninhabitable long before the Sun itself dies. In about one billion years the Sun will be about 10 per cent more lumino...

Diagram showing the interior of the Earth's Moon. The outermost layer, the crust, is about 45 miles (70 km) thick. This is thicker than the Earth's cr...

Artwork of alien technological planet. The planet is in orbit around a red dwarf star, the most common type. The red dwarf is relatively sedate, makin...

Diagram showing the interior of the terrestrial planet Mars. The outermost layer is the crust, which is about 30 miles (50 km) deep on average - quite...

Diagram showing the theoretical interior of the gas giant planet Jupiter. At the centre there is probably a rocky and icy core several times the mass...

Diagram showing the theoretical interior of the ice giant planet Uranus. It probably looks very similar to the interior of Neptune. At the very centre...

Formation of a gas giant. The planet is in the centre, still growing. A concentric disc surrounds it, inside of which the natural satellites are formi...

Image comparing the size of Earth (left) with the planet Neptune. Neptune is the farthest planet from the Sun, with an average distance from it of 29....

The Sun as a red giant. Earth begins to melt as the red-giant Sun swells and approaches our planet's orbit. Eventually the melting may penetrate throu...

Formation of moons around a gas giant. This is how the moons of Jupiter and Saturn, and possibly Uranus, are thought to have formed. The planet is in...

Image comparing the size of Earth (left) with the planet Saturn. Saturn is the sixth planet from the Sun, with an average distance from it of 9.4 time...

Image comparing the size of Earth (left) with the planet Jupiter. Jupiter is the fifth planet from the Sun, with an average distance from it of 5.2 ti...

Computer artwork comparing the size of Mars (left) with that of the Earth. Mars' diameter is 53% that of the Earth's. It has ten percent the mass of E...

Diagram showing the theoretical interior of the gas giant planet Saturn At the centre there is probably a rocky and icy core several times the mass of...

Diagram showing the theoretical interior of the gas giant planet Jupiter. At the centre there is probably a rocky and icy core several times the mass...

Image comparing the size of Earth (left) with the planet Jupiter. Jupiter is the fifth planet from the Sun, with an average distance from it of 5.2 ti...

Artwork of an asteroid. Even in the main belt the asteroid density is very low. On average, distances of millions of miles separate even the closest m...

Diagram showing the theoretical interior of the ice giant planet Uranus. It probably looks very similar to the interior of Neptune. At the very centre...

Diagram showing the theoretical interior of the ice giant planet Uranus. It probably looks very similar to the interior of Neptune. At the very centre...

Diagram showing the interior of the Earth's Moon. The outermost layer, the crust, is about 45 miles (70 km) thick. This is thicker than the Earth's cr...

Image comparing the size of Earth (right) with the planet Venus. Venus is the second planet from the Sun, with an average distance from it of 0.72 tim...

Diagram showing the theoretical interior of the gas giant planet Saturn At the centre there is probably a rocky and icy core several times the mass of...

Image comparing the size of Earth (left) with the planet Uranus. Uranus is the seventh planet from the Sun, with an average distance from it of 19.2 t...

Diagram showing the theoretical interior of the gas giant planet Jupiter. At the centre there is probably a rocky and icy core several times the mass...

Image comparing the size of Earth (right) with the planet Venus. Venus is the second planet from the Sun, with an average distance from it of 0.72 tim...

Diagram showing the interior of the terrestrial planet Mars. The outermost layer is the crust, which is about 30 miles (50 km) deep on average - quite...

Image comparing the size of Earth (left) with the planet Neptune. Neptune is the farthest planet from the Sun, with an average distance from it of 29....

Image comparing the size of Earth (right) with the planet Mercury. It is the closest planet to the Sun, with an average distance from it of 0.39 times...

Diagram showing the theoretical interior of the gas giant planet Saturn At the centre there is probably a rocky and icy core several times the mass of...

Diagram showing the interior of the Sun. The solar interior is composed of a core (central 30%) a radiative zone outside this, and then a convective l...

Image comparing the size of Earth with its single Moon. The Moon is 27% the size of its parent, which it orbits once every 27.3 days. Despite its dimi...

Computer artwork comparing the size of Mars (left) with that of the Earth. Mars' diameter is 53% that of the Earth's. It has ten percent the mass of E...

Diagram showing the theoretical interior of the ice giant planet Neptune. It probably looks very similar to the interior of Uranus. At the very centre...

Diagram showing the interior of the terrestrial planet Mars. The outermost layer is the crust, which is about 30 miles (50 km) deep on average - quite...