PIX4668007: Chateau du Clos Luce - Clos Luce - Amboise - The Chateau du Clos Luce is located in the heart of the Loire Valley, in the city center of Amboise. Once called the Chateau du Cloux and summer residence of the kings of France until 1516, Francois I put it at the disposal of Leonard de Vinci, who lived there for three years, until his death on 2 May 1519 / Bridgeman Images
PIX4650277: Johannes Kepler - Contemporary illustration. Kepler Johannes (Weil 1571 - Regensburg 1630) German Astronomer. Johannes Kepler (Dec 27 1571 - Nov 15 1630) was a german mathematician, astronomer and a key figure in the 17th century astronomical revolution. Modern illustration / Bridgeman Images
PIX4639821: Artist's view of a first human crew on Mars - Martian Pioneers - The first human visitors to Mars would face an environment nearly as hostile as the Earth's Moon. While Mars has an atmosphere, it contains no breathable oxygen and is so thin that the surface air pressure is about the same as the Earth's 18 miles above sea level. To venture outside, humans would need hardy suits that would supply pressure, oxygen, moisture, warmth, and insulate them from the fine martian dust that may be both abrasive and caustic. Even with these precautions, humans would still be vulnerable to radiation from solar storms and the continual rain of interstellar cosmic rays / Bridgeman Images
PIX4633276: The Earth 650 million years ago - Artist's view - Snowball Earth - The Earth seen in a period of glaciation (Varanger glaciation), about 650 to 630 million years ago. This is how the Earth may have appeared about 650 million years ago during a period when snow and ice may have covered most, if not all, of the Earth's surface and oceans. This image suggests the Earth's appearance during the Marinoan glaciation from 650 to 630 million years ago. The southern and eastern hemispheres are dominated by glacier - covered land masses while the opposing hemisphere is frozen ocean save for a few areas of exposed liquid water, AKA refugia for the Earth's surviving soft - bodied multicellular organisms. In addition to the Marinoan glaciation there may have been at least two, and possibly three previous Proterozoic glacial periods going back to two billion years ago. The causes of these snowball periods are unknown but may have been due to massive volcanic eruptions, massive meteoritic impacts (both resulting in global sun - reflecting ash clouds), or variance's in the Earth's orbit / Bridgeman Images
PIX4642714: View of satellites and debris in low orbit around the Earth - Objects in low - Earth orbit - View over Ecuador 80 per cent of recenses are in low orbit up to 2000 km above Earth. Objects in low - Earth orbit (LEO). View over the equator. Eighty percent of all catalogued objects are in low - Earth orbit (LEO), which extends to 2000 km above the Earth's surface. To observe the Earth, spacecraft must orbit at such a low altitude. The spatial density of objects increases at high latitudes / Bridgeman Images
PIX4608891: Spiral Galaxy M31 in Andromede - Spiral galaxy M31 in Andromeda - The galaxy of Andromede is located about 2 million years ago - light from Earth. Two satellite galaxies accompany him: M32 (NGC 221) at the top, and M110 (NGC 205) at the bottom. Like the lactee path, the Andromede galaxy belongs to the local group, making up about thirty galaxies. M31, the Great Galaxy in Andromeda, is a gigantic collection of more than 300 billion stars and is located about 2 million light years from Earth. Companion dwarf elliptical galaxies M32 and M110 are also visible. M31 and its companions are part of our local group of galaxies, which includes the Milky Way and Magellanic Clouds, and M33. The Andromeda Galaxy is headed towards our Milky Way Galaxy and is expected to collide with it and possibly merge into a gigantic elliptical galaxy in about 3 billion years. Die Andromeda - Galaxie liegt in einer Entfernung von rund 2,5 Millionen Lichtjahren. Der Durchmesser der sichtbaren Scheibe betraegt 150.000 Lj. Zum Vergleich: unsere Milchstrasse hat einen Durchmesser von ca. 100.000 Lj. Nach neuesten Erkenntnissen enthaelt M31 etwa eine Billion Sterne, waehrend die Milchstrasse 100 bis 200 Milliarden Sterne enthaelt. The Andromeda - Galaxy ist umgeben von den beiden elliptischen Galaxien M32 und M110 / Bridgeman Images