Observing

Watch near-Earth asteroid 2017 CS dash across the northern sky 28 May—1 June

23 May 2017 Ade Ashford

Five hundred-metre-wide asteroid 2017 CS passes just 1.9 million miles, or 7.9 lunar distances, from Earth on the afternoon of Monday 29 May 2017. For a few nights around this date, Northern Hemisphere observers with 6-inch and larger ‘scopes can see the asteroid gallop through the constellations of Canes Venatici, Boötes and Hercules at up to 14 degrees/day.

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

A unique project to track two asteroids for Asteroid Day 2016

29 June 2016 Astronomy Now

Las Cumbres Observatory have partnered with Asteroid Day 2016 and Universe Awareness to create a website which allows you to use a global network of robotic telescopes to take pictures of two asteroids — 2002 KL6 and 2010 NY65 — currently passing close to Earth. On the website you can join the international campaign to study and raise awareness about asteroids.

News

Small asteroid is Earth’s constant companion

16 June 2016 Astronomy Now

A small asteroid designated 2016 HO3 has been discovered in an orbit around the Sun that keeps it as a constant companion of Earth, and it will remain so for centuries to come. It is too distant to be considered a true satellite of our planet, but it is the best and most stable example to date of a near-Earth companion, or “quasi-satellite.”

Picture This

ExoMars spotted in space en route to Red Planet

18 March 2016 Astronomy Now

On 14 March, the ExoMars spacecraft and Schiaparelli lander were lofted into orbit by a Proton rocket, starting a seven-month journey to the Red Planet. For the ExoMars launch, ESA’s near-Earth object (NEO) coordination centre in Italy organised a successful international campaign for ground-based optical observations of the departing spacecraft.

News

Asteroid 2013 TX68 won’t hit Earth, but will get close

2 March 2016 Astronomy Now

Discovered by the Catalina Sky Survey on 6 October 2013 a week before its last close flyby of Earth, 30-metre-wide asteroid 2013 TX68 was initially thought to pass by Earth again on 5 March 2016. Additional observations of the body have now been obtained, refining its orbital path and moving the date of the asteroid’s close brush with our planet to 8 March.

News

Mystery of disappearing asteroids solved

18 February 2016 Astronomy Now

Ever since it was realised that asteroid and comet impacts are a real and present danger to the survival of life on Earth, it was thought that most of those objects end their existence by plunging into the Sun. But a new study finds instead that most of those objects are destroyed in a drawn out, long hot fizzle, much farther from the Sun than previously thought.

News

NASA office to coordinate asteroid detection and hazard mitigation

12 January 2016 Astronomy Now

NASA has formalised its ongoing program for detecting and tracking near-Earth objects (NEOs) as the Planetary Defense Coordination Office (PDCO). The office will be responsible for supervision of all NASA-funded projects to find and characterise asteroids and comets that pass near Earth. It will also take a leading role in coordinating efforts in response to any potential impact threats.