Announcement of Opportunity (AO) for Community Scientists in the PLATO mission; 4th AO for Science Planners in the NASA-led IRIS mission; Gaia: How many stars to expect in Gaia's second data release

ANNOUNCEMENTS
+ ANNOUNCEMENT OF OPPORTUNITY FOR COMMUNITY SCIENTISTS IN THE PLATO MISSION
The purpose of this Announcement of Opportunity (AO) is to solicit proposals for Community Scientists in the PLATO mission. This AO is open to scientists affiliated with institutes located in ESA Member States. Letters of Intent are due 26 April 2018, 12:00 (noon) CEST. The deadline for proposals is 23 May 2018, 12:00 (noon) CEST.
Read more: Link
+ 4TH ANNOUNCEMENT OF OPPORTUNITY FOR SCIENCE PLANNERS IN THE NASA-LED IRIS MISSION
This 4th Announcement of Opportunity, open to scientists affiliated with institutes located in ESA Member States, solicits proposals for participation as Science Planners in the NASA-led IRIS mission. The deadline for proposals is 10 May 2018, 12:00 (noon) CEST.
Read more: Link
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MISSION NEWS
+ HOW MANY STARS TO EXPECT IN GAIA'S SECOND DATA RELEASE
As astronomers worldwide are preparing to explore the second data release of ESA's Gaia satellite, the Data Processing and Analysing Consortium announced just how many sources will be included in the new catalogue, which will be made public on 25 April.
Read more: Link
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