China has begun launching its own satellite internet network

Since 2019, Elon Musk and SpaceX have led the charge to create high broadband satellite internet services. As of May 2023, the Starlink constellation consisted of more than 4,000 satellites operating in Low Earth Orbit (LEO) ...

Asteroid named after Portuguese astrophysicist

The International Astronomical Union (IAU) has named an asteroid after Pedro Machado, astrophysicist at Institute of Astrophysics and Space Sciences (IA), at the Faculty of Sciences of the University of Lisbon (Portugal). ...

What drives ions through polymer membranes?

Ion exchange membranes are needed in (photo)electrolyzers, fuel cells and batteries to separate ions and enable the desired processes. Polymeric membranes such as synthetically produced compounds like NAFION are particularly ...

Astronomers puzzled by 'planet that shouldn't exist'

The search for planets outside our solar system—exoplanets—is one of the most rapidly growing fields in astronomy. Over the past few decades, more than 5,000 exoplanets have been detected and astronomers now estimate ...

page 17 from 40