December 7, 2025
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Breaking News
  • [ December 5, 2025 ] International Space Station prepares for new commander, heads into final five years of planned operations Mission Reports
  • [ December 4, 2025 ] SpaceX launches 28 Starlink satellites on Falcon 9 rocket from Vandengerg SFB Falcon 9
  • [ December 4, 2025 ] Orion hatch ‘blemish’ delays launch day rehearsal for Artemis 2 astronauts Mission Reports
  • [ December 3, 2025 ] Jared Isaacman makes second appeal for NASA administrator position News
  • [ December 2, 2025 ] Sunset SpaceX launch adds 29 more Starlink satellites into low Earth orbit Falcon 9

Articles by Stephen Clark

Members

Q&A with Sara Seager, deputy director of science on NASA’s TESS mission (members only)

April 15, 2018 Stephen Clark

Sara Seager is an astrophysicist and planetary scientist at MIT, and she serves as deputy science director on NASA’s Transiting Exoplanet Survey Satellite, which aims to find planets around stars relatively close to the sun, searching for worlds that are ideal follow-up targets for missions like the James Webb Space Telescope.

Atlas 5

Multi-satellite payload hoisted into high-altitude orbit by Atlas 5 rocket

April 15, 2018 Stephen Clark

A package of communications and tech demo satellites for the U.S. Air Force rode a United Launch Alliance Atlas 5 rocket into an orbit more than 20,000 miles over the equator after liftoff from Cape Canaveral Saturday evening.

Atlas 5

Photos: Atlas 5 rocket blasts off for U.S. Air Force

April 14, 2018 Stephen Clark

An Atlas 5 rocket rumbled into space Saturday evening after lifting off from Cape Canaveral with multiple U.S. Air Force communications and tech demo satellites, and brilliant clear skies made for ideal viewing conditions shortly before sunset.

Members

Q&A with George Ricker, principal investigator for the TESS mission (members only)

April 14, 2018 Stephen Clark

George Ricker, an astronomer and pioneer in space imaging sensor ships at MIT, leads the science team for NASA’s Transiting Exoplanet Survey Satellite.

Atlas 5

On the pad: Atlas 5 rocket in position for third flight of 2018

April 14, 2018 Stephen Clark

These photos captured on the eve of launch show a United Launch Alliance Atlas 5 rocket standing on its launch pad at Cape Canaveral Air Force Station, ready for blastoff on the U.S. Air Force’s AFSPC 11 mission with three satellites on-board.

Atlas 5

Launch timeline for Atlas 5’s AFSPC 11 mission

April 14, 2018 Stephen Clark

A United Launch Atlas 5 rocket is set to loft three military satellites for the U.S. Air Force on a mission codenamed AFSPC 11. This timeline shows the major mission events planned over a six-hour flight to a near-geostationary orbit.

Atlas 5

Photos: Atlas 5 rolled out for Air Force mission

April 13, 2018 Stephen Clark

A United Launch Alliance arrived at Cape Canaveral’s Complex 41 launch pad Friday morning after rolling out of its vertical hangar with three U.S. Air Force satellites designed to provide communications to military leaders and test new in-orbit inspection and surveillance technology.

News

Blue Origin’s orbital rocket in the running to receive U.S. military investment

April 13, 2018 Stephen Clark

Blue Origin submitted a proposal late last year in what’s expected to be a four-way competition for U.S. Air Force funding to support development of new orbital-class rockets, a further step taken by the Jeff Bezos-owned company to break into the military launch market, industry officials said.

Atlas 5

Live coverage: Atlas 5 rocket lifts off from Cape Canaveral with multiple satellites

April 13, 2018 Stephen Clark

With its payload shroud filled with multiple U.S. Air Force satellites heading for a high-altitude perch over the equator, a United Launch Alliance Atlas 5 rocket lifted off from Cape Canaveral Saturday at 7:13 p.m. EDT (2313 GMT) in its most powerful configuration with five strap-on solid-fueled boosters.

Mission Reports

Photos: Indian rocket makes rare nighttime launch

April 13, 2018 Stephen Clark

Lifting off in the predawn hours from India’s island spaceport, a Polar Satellite Launch Vehicle added a new navigation satellite to the country’s space-based positioning network this week.

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News Headlines

  • International Space Station prepares for new commander, heads into final five years of planned operations
    December 5, 2025
  • SpaceX launches 28 Starlink satellites on Falcon 9 rocket from Vandengerg SFB
    December 4, 2025
  • Orion hatch ‘blemish’ delays launch day rehearsal for Artemis 2 astronauts
    December 4, 2025
  • Jared Isaacman makes second appeal for NASA administrator position
    December 3, 2025
  • Sunset SpaceX launch adds 29 more Starlink satellites into low Earth orbit
    December 2, 2025
  • Arianespace launches South Korean Earth observation satellite on Vega-C flight
    December 2, 2025
  • SpaceX launches evening Falcon 9 rocket from Vandenberg SFB
    December 1, 2025
  • SpaceX kicks off December with predawn Falcon 9 rocket launch
    November 30, 2025
  • SpaceX launches 140 spacecraft on Transporter-15 rideshare mission
    November 28, 2025
  • NASA astronaut, two cosmonauts take Thanksgiving Day ride to space station
    November 27, 2025
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