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ESO News
26 March 2014

Observations at many sites in South America, including ESO’s La Silla Observatory, have made the surprise discovery that the remote asteroid Chariklo is surrounded by two dense and narrow rings. This is the smallest object by far found to have rings and only the fifth body in the Solar System — after the much larger planets Jupiter, Saturn, Uranus and Neptune — to have this feature. The origin of these rings remains a mystery, but they may be the result of a collision that created a disc of debris. The new results are published online in the journal Nature on 26 March 2014.

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The ESO Education and Public Outreach Department
26 March 2014

  ESO Announcements

ESOcast 64: First Ring System Around an Asteroid

26 March 2014: This episode of the ESOcast presents the recent discovery that the remote asteroid Chariklo is surrounded by two dense and narrow rings. Telescopes at seven locations in South America, including ...

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Powerful New Laser Passes Key Test — ESO accepts the first 22-watt sodium laser for the Adaptive Optics Facility

24 March 2014: A new 22-watt laser has now been accepted from the system supplier TOPTICA and its partner MPB following nearly five years of sustained collaboration and effort (see ann1045, ann1048, ann11039 ...

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Road to Armazones Started

14 March 2014: The civil works for the European Extremely Large Telescope (E-ELT) have begun. The Chilean company, ICAFAL Ingeniería y Construcción S.A. (ICAFAL), has started construction of a road ...

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ESO Remains World’s Most Productive Ground-based Observatory

14 March 2014: A survey of the number of peer-reviewed scientific papers published in 2013 using data from ESO’s telescopes and instruments has shown that ESO remains the world’s most productive ...

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Incoming President of Chile Michelle Bachelet Meets Senior ESO Representatives

12 March 2014: The ESO Director General, Tim de Zeeuw, together with ESO Council President Xavier Barcons, ESO Representative in Chile Fernando Comerón, and Director of Operations Andreas Kaufer met Michelle Bachelet ...

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 Pictures of the Week

24 March 2014
Framing the Night Sky

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