Gravitational lenses could allow a galaxy-wide internet

As Carl Sagan once said, "The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars." And our first emissaries to the stars will be robotic probes. These interstellar probes will be largely ...

Cosmic lens reveals faint radio galaxy

Radio telescopes are the world's most sensitive radio receivers, capable of finding extremely faint wisps of radio emission coming from objects at the farthest reaches of the universe. Recently, a team of astronomers used ...

Magnetar SGR J1935+2154 investigated in detail

Using various ground-based facilities worldwide, an international team of astronomers has carried out long-term multi-frequency radio observations of a galactic magnetar known as SGR J1935+2154. Results of the observational ...

Capturing free-space optical light for high-speed Wi-Fi

Visible and infrared light can carry more data than radio waves, but has always been confined to a hard-wired, fiber-optic cable. Working with Facebook's Connectivity Lab, a Duke research team has now made a major advance ...

Observations inspect radio emission from two magnetars

Using the Australia Telescope Compact Array (ATCA) and the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have conducted a study of two magnetars known as PSR J1622−4950 and 1E 1547.0−5408. Results of ...

GECAM team reports first detection of gamma-ray transients

In the early morning of Jan. 20 (Beijing Time), the Gravitational Wave High-Energy Electromagnetic Counterpart All-sky Monitor (GECAM or Huairou-1) team reported their first detection of a gamma-ray transient (GRB 210119A) ...

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