Stephen Clark
Stephen Clark is the Editor of Spaceflight Now, a web-based publication dedicated to covering rocket launches, human spaceflight and exploration. He joined the Spaceflight Now team in 2009 and previously wrote as a senior reporter with the Daily Texan. You can follow Stephen's latest project at SpaceflightNow.com and on Twitter.
Latest articles by Stephen Clark
![Ariane 5 lifts off from the Spaceport carrying a record payload mass with its Yahsat Y1A and Intelsat New Dawn satellite passengers.](https://cdn.mos.cms.futurecdn.net/qEUXFGpjgpSZzeRcNWVKwE-320-80.jpg)
European Rocket Launches Two New Satellites Into Orbit
By Stephen Clark published
A European rocket launched two communications Friday after weeks of delay following a launch pad abort.
![View of the Indian PSLV-C16 rocket from the top of Mobile Service Tower.](https://cdn.mos.cms.futurecdn.net/8djwhUaNXLrwW6jaHkxto3-320-80.jpg)
Indian Rocket Reaches Space with Observation Satellite
By Stephen Clark published
India overcame two rocket failures last year when it launched three satellites into orbit this week.
![Air Force's Mystery X-37B Robot Spaceship to Launch Today](https://cdn.mos.cms.futurecdn.net/viu8WTypWg6LLFoSwhhzKV-320-80.jpg)
More Secret X-37B Space Plane Missions Expected, U.S. Military Says
By Stephen Clark published
More hush-hush missions ahead for Air Force's X-37B space plane, but no firm dates yet.
![A Russian Soyuz rocket launches the country's first new Glonass K navigation satellite into orbit from the Plesetsk Cosmodrome in northern Russia.](https://cdn.mos.cms.futurecdn.net/rbsYjaX7DnNJSgHEswKLVV-320-80.jpg)
New Russian Navigation Satellite Launched Into Orbit
By Stephen Clark published
A Russian Soyuz rocket launched the new Glonass K navigation satellite into orbit Saturday.
![A Russian Soyuz rocket launches the country's first new Glonass K navigation satellite into orbit from the Plesetsk Cosmodrome in northern Russia.](https://cdn.mos.cms.futurecdn.net/rbsYjaX7DnNJSgHEswKLVV-320-80.jpg)
Remove - New Russian Navigation Satellite Launched Into Orbit
By Stephen Clark published
A Russian Soyuz rocket launched the new Glonass K navigation satellite into orbit Saturday.
![Prototype Missile Defense Satellites Primed for Test Flight](https://cdn.mos.cms.futurecdn.net/ZDmz6nHNkUTA6kuhUqLG9m-320-80.jpg)
Missile Defense Demo Satellites Ready for Testing
By Stephen Clark published
The U.S. Missile Defense Agency is merging a satellite demo mission with ground and sea missile tests.
![Secret NROL-66 spy satellite launches from California on Minotaur 1 rocket.](https://cdn.mos.cms.futurecdn.net/ffeEBfna6aeyVL4mbVUzd7-320-80.jpg)
U.S. Military Launches Secret Satellite to Test Space Spy Tech
By Stephen Clark published
A trailblazing payload for the National Reconnaissance Office successfully rocketed into orbit on a Minotaur 1 booster Sunday.
![An Orbital Sciences Minotaur 1 rocket blasts off with the Air Force's TacSat-3 satellite onboard.](https://cdn.mos.cms.futurecdn.net/T3BqzM9a7fMSjU5iAAJ42k-320-80.jpg)
U.S. Military to Launch Secret Spy Satellite Demo Saturday
By Stephen Clark published
The U.S. military will launch a Minotaur rocket Saturday with a secret technology research mission for the NRO.
![The U.S. Air Force's secretive X-37B robot space plane landed at Vandenberg Air Force Base in California on Dec. 3, 2010 to end a successful — but mysterious — seven month mission that was shrouded in secrecy. Recovery crews were quick on scene to meet th](https://cdn.mos.cms.futurecdn.net/zbKYUqxAMPdMC7m2mLspfb-320-80.jpg)
Air Force Primes X-37B Space Plane for Next Secret Mission
By Stephen Clark published
The U.S. Air Force is preparing its second X-37B robot space plane for a secret spaceflight in March.
![A huge Delta 4-Heavy rocket stands poised to blast off from Space Launch Compex 6 at Vandenberg Air Force Base in California on Jan. 20, 2011. The mission marked the first launch of the largest rocket launch ever from the U.S. West Coast.](https://cdn.mos.cms.futurecdn.net/wYYvM6AZfBvFEiQnfoTFhN-320-80.jpg)
Huge Rocket to Launch From U.S. West Coast Today
By Stephen Clark published
The largest rocket ever to launch from the U.S. West Coast is set to blast off today (Jan. 20).
![Space Station Ready for New Robot, Room](https://cdn.mos.cms.futurecdn.net/bjDytBnxrqCYEeWtvFp5PN-320-80.jpg)
Space Station's Dextre Robot Passes Crucial Test
By Stephen Clark published
![Rocket Failure A Major Setback for Indian Space Program](https://cdn.mos.cms.futurecdn.net/X54PxBRc7E2Yq2NcQMXem5-320-80.jpg)
Indian Rocket Explodes After Launch
By Stephen Clark published
India's largest rocket lost control and erupted in a fireball Saturday, dealing another blow to the country's space program after back-to-back failures of the Geosynchronous Satellite Launch Vehicle.
![Chinese Military Communications Satellite Reaches Orbit](https://cdn.mos.cms.futurecdn.net/3JTzM9HxDtGdatbY7FYAQW-320-80.jpg)
Chinese Military Communications Satellite Reaches Orbit
By Stephen Clark published
China successfully orbited a military communications satellite Wednesday (Nov. 24) on a Long March rocket.
![New High-Tech Satellites Launched Into Orbit](https://cdn.mos.cms.futurecdn.net/kg74EMHRSf2REH7CGKcARQ-320-80.jpg)
New High-Tech Satellites Launched Into Orbit
By Stephen Clark published
An Ariane 5 rocket blasted off from French Guiana and soared into a deep blue sky Friday carrying to new European communications satellites.
![China Reaches New High for Most Space Missions in a Year](https://cdn.mos.cms.futurecdn.net/7cRWxZfmtoBZXEJhQTm2R6-320-80.jpg)
China Reaches New High for Most Space Missions in a Year
By Stephen Clark published
China has set a new high for the country's space program with Sunday's launch of a new navigation satellite.
![](https://cdn.mos.cms.futurecdn.net/BfobgKiYqFqKpmNa7X4eYM-320-80.jpg)
New Russian Military Satellite Launches on Soyuz Rocket
By Stephen Clark published
A new Russian military satellite launched into orbit Tuesday atop a Soyuz rocket.
![A Japanese H-2A rocket soars into space on Sept. 11, 2010 carrying the new Quasi-Zenith Satellite, a GPS satellite called Michibiki.](https://cdn.mos.cms.futurecdn.net/yVQcNFNzUFrQGFBEdYcWW4-320-80.jpg)
Japan Plans Upgrades for H-2A Rocket Workhorse
By Stephen Clark published
Japan is planning to upgrade its H-2A rocket workhorse to make it more competitive in the global market.
![NASA Launches New Spacecraft to Study the Sun](https://cdn.mos.cms.futurecdn.net/uZMLtmJjrUSa7bQ5JU7B8a-320-80.jpg)
NASA Chooses Atlas 5 Rocket to Launch New Mars Orbiter
By Stephen Clark published
NASA has selected an Atlas 5 rocket to launch a new orbiter to Mars in November 2013.
![Soyuz Rocket to Launch New Satellites for Globalstar Network](https://cdn.mos.cms.futurecdn.net/UXyYswahPZ6oTRyNPQEAKB-320-80.jpg)
Soyuz Rocket to Launch New Satellites for Globalstar Network
By Stephen Clark published
Six next-generation satellites for the Globalstar mobile communications network will launch from Kazakhstan on a Soyuz rocket Tuesday.
![New Sirius XM Radio Satellite Blasts Off on Russian Rocket](https://cdn.mos.cms.futurecdn.net/v2U7N6xujCLv4PLmi2zV4c-320-80.jpg)
New Sirius XM Radio Satellite Blasts Off on Russian Rocket
By Stephen Clark published
Sirius XM Radio's next broadcasting satellite rocketed away from Earth and into space Thursday.
![](https://cdn.mos.cms.futurecdn.net/BfobgKiYqFqKpmNa7X4eYM-320-80.jpg)
Pair of Research Satellites Launched by China
By Stephen Clark published
China launched two new research satellites into orbit on Wednesday.
![NASA Climate Satellite Launch Delayed](https://cdn.mos.cms.futurecdn.net/QN3myCWqmWKWhZCz5pmjUE-320-80.jpg)
NASA Climate Satellite Launch Delayed
By Stephen Clark published
A NASA mission to investigate climate change has been pushed back by rocket and spacecraft issues.
![Navigation Satellite Reaches Position Above Japan](https://cdn.mos.cms.futurecdn.net/XnhcMuwCfbSwNSavHhHPfN-320-80.jpg)
Navigation Satellite Reaches Position Above Japan
By Stephen Clark published
Japan's first navigation satellite has arrived on station more than 20,000 miles over Asia.
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