4.9K views · 248 reactions | For six decades, most SETI experiments have relied on picking up signals reaching Earth. However, such schemes have limitations that can be avoided by searching for artifacts: constructions or rearrangements of nature attributable to highly advanced intelligence. Join Senior Director Simon Steel and Senior Astronomer Seth Shostak, who will talk about the advantages of hunting for artifacts and what such searches might uncover. | SETI Institute | Facebook

105 reactions · 12 comments | The SETI Institute is the only organization fully dedicated to finding intelligent life beyond Earth. We're less than $4k away from meeting our funding goal for the year, and all gifts made through 11:59 p.m. TODAY will be doubled! With limited federal funding, YOUR SUPPORT is the only way we'll answer the age-old question, "Are we alone?" Support the search: https://bit.ly/3Jsog97 | SETI Institute | Facebook

1.2K views · 98 reactions | Whales have been on this planet for...