Three new millisecond pulsars detected with MeerKAT

Using the MeerKAT radio telescope in South Africa, an international team of astronomers has detected three new millisecond pulsars in the globular cluster Messier 62 (also known as NGC 6266). The finding was detailed in a ...

Watch a real-time map of Starlink satellites orbiting Earth

In an effort to enhance the educational outreach of their Starlink constellation, SpaceX has an interactive global map of their Starlink internet satellites, which provides live coverage of every satellite in orbit around ...

Israel's war budget leaves top scientists in limbo

Israeli scientist Ellen Graber has spent years researching ways to save chocolate crops from climate change. But with the government slashing spending to fund the war in Gaza, her project is one of hundreds now hanging in ...

Astronomers discover 49 new galaxies in under three hours

An international team of astronomers has discovered 49 new gas-rich galaxies using the MeerKAT radio telescope in South Africa. Their research is published in Monthly Notices of the Royal Astronomical Society.

Astronomers propose a 50-meter submillimeter telescope

Some parts of the universe only reveal important details when observed in radio waves. That explains why we have ALMA, the Atacama Large Millimeter–submillimeter Array, a collection of 7-meter and 12-meter radio telescopes ...

page 1 from 40

Radio

Radio is the transmission of signals by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space. Information is carried by systematically changing (modulating) some property of the radiated waves, such as amplitude, frequency, or phase. When radio waves pass an electrical conductor, the oscillating fields induce an alternating current in the conductor. This can be detected and transformed into sound or other signals that carry information.

This text uses material from Wikipedia, licensed under CC BY-SA