Cosmic radiation reaching Earth is composed of different types of particles. The most common ones are protons and the nuclei of helium atoms. Antiparticles, however, are much less common.

Alphabet is to shut down Internet balloon company Project Loon. The company announced the news on Friday morning after nine ...

In the years since then, balloon flight technology has evolved from cloth balloons and open baskets to polyethylene balloons ...

Last week, 250 scientists, engineers and experts gathered for an international space conference in Visby, Sweden. The four-day conference focused mainly on European balloon and rocket programs and ...