This time the viewer question comes from David Burgos from Colombia.

This week's Tomorrow Today viewer question comes from Demetrio Puentes Quintero in Colombia.

This week’s question on Tomorrow Today is from Telmires Alves Rodrigues. He would like to know: How do the moon and the sun stay where they are and not come crashing down to the Earth?

This week's DW viewer question comes from Moacir Machado Monteiro in Sao Paulo, Brazil.

This DW viewer question comes from Elvin Kawale from Lilongwe in Malawi.

This week's question comes from Oscar Raúl Pérez Cabrera from Mexico.

In 2012, the Higgs boson particle was detected in an experiment at the European nuclear research organization, CERN. It was a milestone in scientific research. Yet there are still plenty of cosmic secrets to be discovered.

This week's viewer question comes from Ignacio Muñoz Rengifo in Chile.

Astronaut Matthias Maurer recently returned to Earth after spending almost half a year in space. Extraterrestrial stays can put a lot of strain on the human body. DW Reporter Lea Albrecht met up with him and asked: Has weightless life left its mark?

Could the ice at the poles cool down the Earth's molten core enough to extinguish its volcanism? This week’s question comes from Samuel Ouma from Uganda.