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Picture of gas and dust cloud, NGC 3603 and an active region of star formation some 20.000 light years away from the constellation Carina

Α disc of hot gas whipping around the neutron star. The high pressure and the heat of gas create a rare nuclear explosion

The open cluster of stars, NGC 6791, is one of the oldest and the largest open clusters that have been discovered

Our solar system began as a giant disc of gas and dust which resulted in a nebula with star-forming regions and comets orbiting the young Sun

Clumps of gas and dust accrete into planets in a disc encircling a failed star or brown dwarf at the center. Our solar system is believed to have originated in the same way

The planets, Jupiter, Saturn, Uranus and Neptune are the outer planets of the Solar System, but Pluto is not associated with the major planets.

The images show the concentrations of ozone in the stratosphere in October and August. In the southern hemisphere during spring more than two-thirds of the ozone are destroyed and the ozone hole appears in summer, after the entry of a new ozone layer from the regions of Ecuador.

The Perfect Storm, a small region in the Swan Nebula, as it was represented in a Hubble Space Telescope photograph

Natural-color photograph of Earth, the third planet from the Sun, as it was taken by satellite of NASA

Natural-color photograph of Earth, the third planet from the Sun, as it was taken by satellite of NASA

Photograph of the Earth's surface in which the position of Greece is visible during a big fire in Samos island

Multi-colored and natural-colored images of planet Earth recorded by satellites. The third photo on the right depicts the Aurora Australis

Photograph of the Earth's surface in which we can distinguish the position of Greece

View of the planet Earth and its natural satellite, the Moon, as it orbits around Earth. The Moon's diameter appears to be a quarter of the Earth's diameter

Natural colored images of Jupiter's surface and its rings. Also, a picture (second on the right) depicts the Jupiter Great Red Spot taken by Voyager 1