These cosmic explosions are up to 10 times more energetic than supernovae. By discovering it, they have solved a mystery that led astronomers on their heads
When asked what mass is, the first thing we can answer is that mass is not, as it might seem, a measure of the amount of matter. Do not; it is a measure of inertia.
Space exploration raises a range of ethical questions: who owns the resources of the Moon or Mars? Can we interfere with the search for extraterrestrial life by inadvertently introducing our own microorganisms to other planets?
Radon is a radioactive gas of natural origin that can accumulate in poorly ventilated places and is, according to the WHO, the main risk agent for developing lung cancer behind smoking.
Its mountains are inactive volcanoes, there are tectonic plates and its atmosphere is so thin that it barely blocks the incidence of heat on the surface.
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.
