Menu Close

Articles on Radio astronomy

Displaying 1 - 20 of 100 articles

ESA/Webb, NASA & CSA, A. Martel

Why is the sky dark at night? The 200-year history of a question that transformed our understanding of the Universe

The darkness of the night sky seems so obvious as to need no explanation – yet it has intrigued and baffled scientists for centuries.
The star system V883 Orionis contains a rare star surrounded by a disk of gas, ice and dust. A. Angelich (NRAO/AUI/NSF)/ALMA (ESO/NAOJ/NRAO)

Water in space – a ‘Goldilocks’ star reveals previously hidden step in how water gets to planets like Earth

Astronomers have long known where water is first formed in the universe and how it ends up on planets, asteroids and comets. A recent discovery has finally answered what happens in between.
Radio observatories like the Green Bank Telescope are in radio quiet zones that protect them from interference. NRAO/AUI/NSF

Radio interference from satellites is threatening astronomy – a proposed zone for testing new technologies could head off the problem

Many telescopes use the radio spectrum to learn about the cosmos. Just as human development leads to more light pollution, increasing numbers of satellites are leading to more radio interference.

Top contributors