News

Arecibo radar returns with asteroid Phaethon images

29 December 2017 Astronomy Now

After several months of downtime since Hurricane Maria struck the island of Puerto Rico, the Arecibo Observatory Planetary Radar has returned to normal operation, providing the highest-resolution images to date of near-Earth asteroid 3200 Phaethon during its December 2017 close approach to Earth.

News

Arecibo Observatory will keep scanning the skies

16 November 2017 Stephen Clark

Two months after escaping the destruction brought to Puerto Rico by Hurricane Maria, the famed Arecibo Observatory will get a new lease on life as the National Science Foundation seeks funding partners to keep the radio telescope aimed at the cosmos.

News

Arecibo radar telescope battered by Hurricane Maria

22 September 2017 Stephen Clark

Initial reports from the Arecibo Observatory in Puerto Rico indicate powerful winds from Hurricane Maria destroyed an antenna and damaged the radio telescope’s huge 300-metre (1,000-foot) dish reflector, but the bulk of the facility remains intact and workers sheltered there were unharmed.

Observing

Watch asteroid 2014 JO25 brush by Earth on 19 April

17 April 2017 Ade Ashford

A peanut-shaped asteroid almost a mile long known as 2014 JO25 passes within 5 lunar distances of Earth on 19 April — the closest any known space rock of this size has approached our planet since September 2004. We show you how to find this fast-moving potentially hazardous asteroid in small telescopes during the UK night of 19-20 April.

News

Australian technology behind the world’s largest radio telescope

5 May 2016 Astronomy Now

Technology developed by the Commonwealth Scientific and Industrial Research Organisation (CSIRO) will sit at the heart of one of the world’s biggest ever science projects, the Five hundred metre Aperture Spherical Telescope (FAST), following an agreement with the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC).

News

Earth-space telescope observations of quasar 3C 273’s hot heart

30 March 2016 Astronomy Now

Astronomers using an orbiting radio telescope in conjunction with four ground-based radio telescopes have achieved the highest resolution, or ability to discern fine detail, of any astronomical observation ever made. The researchers were surprised when their Earth-space system revealed a core temperature hotter than 10 trillion degrees for quasar 3C 273.