2011 UW158 – Astronomy Now

4 June 2023

Latest News

[ 1 June 2023 ] Webb spots vast plume of water vapor spewing from Saturn’s moon Enceladus News
[ 26 May 2023 ] Seeing the universe in X-rays, optical and infrared, all at once News
[ 15 May 2023 ] A record-setting explosion as a supermassive black hole gorges on gas News
[ 13 May 2023 ] Globular cluster mystery may be explained by short-lived ultra-massive suns News
[ 12 May 2023 ] Jammed radar boom on Jupiter-bound Juice probe finally freed News

First detailed images of rare asteroid to pass close by Earth on 19 July

19 July 2015 Astronomy Now

Asteroid 2011 UW158 passes just 6.4 lunar distances (1.53 million miles) miles from Earth at 3:37pm BST today. The 300 metre by 600 metre body was imaged in detail by radar during observations made with the Arecibo Observatory on 14 July, revealing that it is not a typical asteroid.