Tomorrow Today (engl.)

DW-TV´s science program TOMORROW TODAY focuses on current topics in research.

Videos

2:28

What happens to decommissioned space satellites?

Satellites are disposed of in various ways, depending on how far away they are from Earth. But satellites that get damaged can't be disposed of and end up as space junk - the European Space Agency is looking to change that with a disposal mission.

1:44

Why do the sun and moon not crash down on the earth?

Earth hurtles through space at 30km/second. At that speed it strikes a balance between gravity exerted by the Sun and its own centrifugal force, falling into a stable orbit. This week's viewer question comes from Telmires A. R. in Brazil.

2:20

Why is the length of a year different on every planet?

Our Solar System has eight planets, and each has a year of a different length. That has to do with their distance from the sun and how quickly they orbit our star.

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