Illustration of System HD 98000

Illustration of the triple star system HD 131399, as seen from a planet. The system consists of a close binary pair of low-mass, red stars, separated by about 10 astronomical units (AU), which is in turn in orbit around a more massive, white...

Artwork of a space probe approaching Trifid nebula

Artwork of a cataclysmic binary (or variable) star seen from a cave on a nearby planet.

Intermediate polar star system, illustration

DMPP-3 exoplanet system, illustration

Illustration of one of the Voyager probes passing an earthlike planet orbiting a binary star system in the distant future. A nebula is seen in the background. The two Voyager probes were launched in the late 1970s. Voyager 1 has now passed into...

Artist's impression of an X-ray binary. These binary star systems comprise a compact star (neutron star or, as here, a black hole) which is in orbit about a larger companion (in this case, a blue giant). The compact star distorts the companion and...

Illustration of a binary star on the outskirts of a globular cluster. Recent studies of such binaries by astronomers at Warwick University, UK, suggest that globular clusters could be 4 billion years younger than thought.

Illustration of the view from an exomoon orbiting a ringed exoplanet in a polar orbit. The exomoon is depicted as rocky, with large stalagmite-type formations on its surface. Its parent is a gas giant with a series of bright rings, similar to...

Illustration of a circumbinary planet. This is a planet in orbit around not one, but two stars, orbiting their centre of mass. Examples of such planets include PSR B1620-26, HD 202206, HW Virginis, Kepler-16 and Kepler-453.

Illustration of the star Nemesis (right), once hypothesised to orbit the Sun (left) on a very elongated path, as seen from the Earth and Moon. Nemesis is a red dwarf, the most common variety of star.

Antarctica at night, satellite image

Artwork of X-ray binary system

Rocky Planet Formation

Artwork of binary star AR Sco

Merged black holes

Aurora borealis over snow covered hills at night, Finnmark, Norway

Artwork of Methuselah, the Genesis Planet

Artwork of Methuselah, the Genesis Planet

A protoplanetary disk around a pair of red dwarf stars.

The black board, Christmas tree, and polar bear with winter background

A tight pair of stars and a surrounding disk of dust.

The accretion disk around the binary star system WZ Sge.

A distant binary star system located within The Milky Way.

Kepler-16b orbits a pair of stars in this retro space poster.

A view from the edge of the southern polar cap of Mars.

Artist's concept showing the binary star system of Sirius A and Sirius B.

Illustration of two stars that have moved so close that each becomes tidally warped towards the other.

abstractive patterned background

Artwork of a gamma-ray burster

Young woman in red outfit with present

Polar binary stars