NASA shows more than 4 thousand exoplanets

The agency has released a video atlas including images of more than 4 thousand space objects. All of them were discovered by scientists from different countries, starting from fall 1991. 

Most of the planets in the video atlas were discovered using a Kepler telescope. The video footage showed an image with new points appearing in chronological order: these are exoplanets discovered starting in the 1990s. The video is accompanied by a musical track. The Kepler telescope can demonstrate the particular color characteristics and movements of space objects using their radial speed. The light coming from the star allows the device to make conclusions about its movements in relation to our planet and the Sun, which enables it to draw its orbit. 

Stars shine with varying intensity in different time periods, so observation enables scientists to make certain conclusions about its distance and trajectory. This information combined with the date of discovery of the exoplanets are also displayed in the video atlas. 

Last year, experts stopped using Kepler for their research. It will be replaced with Hubble and the James Webb Space Telescope. The TESS satellite is also acting as a telescope.