Possible Clues:

• Proj. that would welcome an alien encounter
• Org. that discovered the Wow! signal in space
• Alien-seeking subj
• Looking for aliens, they created hard information!
• Acronym for a project seeking distant intelligence, partly by use of a screensaver available 1999-2020
• Astrobiology org
• 70-Across-hunting org
• "Contact" org
• "Life on Mars?" org. that anagrams to "ties"
• Org. looking for alien life