Zero gravity in outter space. Dreaming about cosmonaut profession or travel the cosmos. Young woman in drawing imaginary spacesuit against blue background. Concept of childhood and dreams. Stock Photo

RFT402A1–Zero gravity in outter space. Dreaming about cosmonaut profession or travel the cosmos. Young woman in drawing imaginary spacesuit against blue background. Concept of childhood and dreams.

Astronaut in outer space against the backdrop of the planet earth. Elements of this image furnished by NASA. Stock Photo

RFM221GC–Astronaut in outer space against the backdrop of the planet earth. Elements of this image furnished by NASA.

Monument to the Conquerors of space, silhouette of russian rocket against the cloudy sky. Museum of cosmonautics in Moscow, space exploration symbol Stock Photo

RFRXM9CT–Monument to the Conquerors of space, silhouette of russian rocket against the cloudy sky. Museum of cosmonautics in Moscow, space exploration symbol

In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, the Soyuz TMA-07M spacecraft is seen in the background against the Soyuz booster rocket upper stage (in the foreground) as technicians worked to encapsulate the vehicle in the upper stage Dec. 12, 2012 for the launch of the Expedition 34/35 crew. The vehicle will be rolled to the launch pad at Baikonur Dec. 17 in advance of the Dec. 19 launch of NASA Flight Engineer Tom Marshburn, Soyuz Commander Roman Romanenko and Flight Engineer Chris Hadfield of the Canadian Space Agency for a five-month mission on the International Spac Stock Photo

RMKRB6AB–In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, the Soyuz TMA-07M spacecraft is seen in the background against the Soyuz booster rocket upper stage (in the foreground) as technicians worked to encapsulate the vehicle in the upper stage Dec. 12, 2012 for the launch of the Expedition 34/35 crew. The vehicle will be rolled to the launch pad at Baikonur Dec. 17 in advance of the Dec. 19 launch of NASA Flight Engineer Tom Marshburn, Soyuz Commander Roman Romanenko and Flight Engineer Chris Hadfield of the Canadian Space Agency for a five-month mission on the International Spac

RFRXM957–Monument to the Conquerors of space, silhouette of russian rocket against the cloudy sky. Museum of cosmonautics in Moscow, space exploration symbol

Silhouette tree line and hill against early morning blue sky background. White vapour trails rising up high. Movement in silence. Stock Photo

RF2C88H2G–Silhouette tree line and hill against early morning blue sky background. White vapour trails rising up high. Movement in silence.

Astronaut in outer space against the backdrop of the outer space. Stock Photo

RFJX1NGW–Astronaut in outer space against the backdrop of the outer space.

In a photo-like satellite image, the faintest of shadows or shading of grey may give them away, but more often, clouds over the poles simply disappear against the background, camouflaged from the satellite's view by the underlying snow and sea ice. For those trying to track clouds from space, to understand cloud physics, say, or to predict the weather, the problem is frustrating. Only with a combination of visible and invisible wavelengths of light, such as infrared light, do clouds become distinct from the snow and ice below. One of NASA's sensors that has the capability of detecting many vi Stock Photo

RMKRED3E–In a photo-like satellite image, the faintest of shadows or shading of grey may give them away, but more often, clouds over the poles simply disappear against the background, camouflaged from the satellite's view by the underlying snow and sea ice. For those trying to track clouds from space, to understand cloud physics, say, or to predict the weather, the problem is frustrating. Only with a combination of visible and invisible wavelengths of light, such as infrared light, do clouds become distinct from the snow and ice below. One of NASA's sensors that has the capability of detecting many vi

RFHW27BG–Astronaut in outer space against the backdrop of the outer space.

The world's first manned Vostok three-stage space rocket at an exhibition in Moscow. Against a background of blue sky and flakes of snow. Translation: Stock Photo

RF2HH1EC5–The world's first manned Vostok three-stage space rocket at an exhibition in Moscow. Against a background of blue sky and flakes of snow. Translation:

RF2FMYE4C–Dogecoin logo on a smartphone against SpaceX logo in the background. SpaceX accepts Dogecoin as payment to launch ‘DOG

Space man in a space suit and hat travels in open space and waves his hand against the background of a rocket lift off. Spaceship takes off successful Stock Photo

RF2H9HDK0–Space man in a space suit and hat travels in open space and waves his hand against the background of a rocket lift off. Spaceship takes off successful

Striking bright full moon in Southern Hemisphere against a vivid deep blue background. Digitally unaltered except for levels. Stock Photo

RFCEGRK8–Striking bright full moon in Southern Hemisphere against a vivid deep blue background. Digitally unaltered except for levels.