Alien oceans At the bottom of an alien ocean, smokers similar than those on Earth can be found, despite the absence of live forms Read More
Altering the structure of proteins In this experiment you will see what happens when we alter the structure of proteins of the egg. Read More
An asteroid before its collision with Earth Sixty five million years ago, an collision between an asteroid and Earth killed the dinosaurs creating a crater 300 km Read More
An artist's interpretation of a solar system's formation The young Sun is surrounded by dust and protoplanets which redden and reduce the light of the star Read More
An asteroid towards Earth Αccording to the idea of panspermia, bacterial colonies on an asteroid falling towards Earth Read More
An early perception of the world The Flammarion woodcut, a wood engraving, was first published in the book, Camile Flammarion, L'atmospere: meteorologie populaire (1888) Read More
An open star cluster Stars form in groups, such as the open star cluster which contains from 50 to 500 stars and rarely to some millions Read More
An optical telescope The optical telescope Newall of the National Observatory of Athens which is located in Penteli and today served only educational needs Read More
Antennae Galaxies collision Picture of the Antennae Galaxies collision from the Hubble Space Telescope Read More
Artist's conception of a black hole A supermassive black hole surrounded by a disc of gas. In the middle there is a large torus of cooler gas and dust. Read More
Artist's impression of a supernova Artistic illustration of a supernova, a luminous stellar explosion that cause a burst of radiation Read More
Artist's impression of a supernova Artistic illustration of a supernova, a luminous stellar explosion that causes a burst of radiation Read More
Artist's impression of a supernova Artistic illustration of a supernova, a luminous stellar explosion that causes a burst of radiation Read More
Artist's impression of a supernova Artistic illustration of a supernova, a luminous stellar explosion that causes a burst of radiation Read More