— SpaceX, Planet ink deal to launch Earth-imaging satellites through 2025 Transporter-3 brought the total number of Planet satellites launched over the years to more than 500, the company said in another Thursday tweet. Sign up for the Live Science daily newsletter now Get the world’s most fascinating discoveries delivered straight to your inbox. Contact me with news and offers from other Future brands Receive email from us on behalf of our trusted partners or sponsors By submitting your information you agree to the Terms & Conditions and Privacy Policy and are aged 16 or over. Many of those spacecraft were lofted by SpaceX. "We were thrilled to launch once again with SpaceX, who has now brought to orbit a total of 127 Planet satellites across eight launches," Planet co-founder and CEO Will Marshall wrote in a blog post Thursday. "This marks our first launch with SpaceX under our new multi-year, multi-launch rideshare agreement signed in 2021." The 44 newly launched SuperDoves are joining an existing fleet of about 200 Planet satellites, Marshall added. Mike Wall is the author of "Out There" (Grand Central Publishing, 2018; illustrated by Karl Tate), a book about the search for alien life. Follow him on Twitter @michaeldwall. Follow us on Twitter @Spacedotcom or on Facebook.