vice president of engineering for the Mountain View, Calif.-based Internet search company. "The data from LSST will be an important part of the world's information and, by being involved in the project, we hope to make it easier for that data to become accessible and useful."

In 2005, Wayne Rosing, a former vice president for engineering at Google, was appointed as a senior fellow in mathematical and physical sciences at UC Davis, working primarily on the LSST project with Tyson.

The LSST research and development effort is funded in part by the National Science Foundation. Additional funding comes from private contributions, in-kind support at Department of Energy laboratories and other institutional members of the consortium.

Founded in 2003, the LSST Corporation, a nonprofit 501(c)3 Arizona corporation headquartered in Tucson, Ariz., includesColombia Farc: 85 ex-rebels killed since peace deal Published duration 1 January 2019

image copyright RAUL ARBOLEDA/AFP/Getty image caption UN chief Antonio Guterres (L) met former Farc members in Colombia in 2018

The United Nations says 85 former Farc rebels have been killed in Colombia since the group signed a peace accord with the government two years ago.

Most of the murders were by illegal armed groups and drug gangs fighting over former Farc territories, UN chief Antonio Guterres said in a report.

Mr Guterres urged Colombian President Ivan Duque, a vocal critic of the peace deal, to do more to protect ex-rebels.

Colombia suffered 52 years of conflict until peace was reached in 2016.

What does the UN say?

In the last three months alone, "14 ex-members of Farc were murdered", Secretary-General Guterres said