Photos: More Launch shots of Delta 375 rocket

A Proton rocket and Block DM upper stage climbed into space Saturday from the Baikonur Cosmodrome in Kazakhstan with Spektr-RG, an astronomical observatory with dual X-ray telescopes developed by Russian and German scientists on the hunt for the signature of dark energy.

A recent federal regulatory filing by SpaceX suggests the company may attempt to return a Falcon 9 rocket booster to Vandenberg Air Force Base in California for the first time later this year.

Blue Origin launched its New Shepard suborbital rocket to the edge of space Tuesday from the company’s remote desert test site in West Texas on an experimental flight to test precision lunar landing technology for NASA.