STS-135 mission coverage


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NASA selects Rocket Lab to launch two science missions
Posted: Sat, Jun 27 11:16 AM ET (1516 GMT)
Electron launch of CAPSTONE (NASA TV) NASA selected Rocket Lab to launch a pair of Earth and space science missions. NASA said Thursday it will use Rocket Lab's Electron to launch its Polarized Submillimeter Ice-cloud Radiometer, or PolSIR, and Total and Spectral Solar Irradiance Sensor-2, or TSIS-2, missions in 2027. PolSIR features a pair of cubesats, launched on individual Electrons, to measure the rise and fall of ice crystals in tropical clouds, as well as how those changes in ice affect storm development. TSIS-2 carries instruments to measure the amount of solar energy entering Earth's atmosphere as a successor to TSIS-1, an ISS payload. NASA used its Venture-Class Acquisition of Dedicated and Rideshare (VADR) contract to make the awards and did not disclose their value.


Report outlines cost growth in canceled NASA exploration programs
Posted: Sat, Jun 27 11:14 AM ET (1514 GMT)
Lunar Gateway illustration (NASA) Four projects canceled earlier this year as part of changes to NASA's Artemis architecture had seen their costs more than double. NASA's Office of Inspector General issued a memo Wednesday evaluating the projects, linked to the Space Launch System Block 1B and lunar Gateway, programs NASA announced earlier this year it would halt. The combined cost of the four contracts had grown from nearly $2.8 billion to $5.9 billion, with more than $1 billion in additional cost increases projected. Some of the projects were up to seven years behind schedule. NASA noted in its response to the memo that it was changing how it was running contracts as it revises its Artemis lunar exploration plans, including more use of fixed-price contracts.


Perseverance Mars rover finds more potential biosignatures
Posted: Sat, Jun 27 11:12 AM ET (1512 GMT)
A NASA Mars rover has found more potential evidence of past life on the Red Planet. Scientists said this week that rocks analyzed by the...


Boeing to build two MUOS satellites
Posted: Sat, Jun 27 11:10 AM ET (1510 GMT)
Boeing won a contract worth up to $2 billion to build two next-generation military communications satellites for the U.S. Space Force. The contract...


OHB raising money in stock sale
Posted: Sat, Jun 27 11:07 AM ET (1507 GMT)
OHB is raising about half a billion euros in a stock sale to fund expansion and potential acquisitions. The company announced this week it would...





Saturday, June 27
Cosmic Storms Shaped the First Stars in the Universe
Academia Sinica — 8:32 pm ET (0032 GMT)
RAS Fellow awarded 2026 Carl Sagan Medal
Royal Astronomical Society — 8:29 pm ET (0029 GMT)
Bow-and-arrow-shaped radio galaxy discovered by citizen scientist
Royal Astronomical Society — 8:29 pm ET (0029 GMT)
HawkEye 360 Announces First Quarter 2026 Financials
HawkEye 360 — 8:26 pm ET (0026 GMT)
EnduroSat Names Spencer McCollester as SVP of Operations, US
GlobeNewswire — 8:17 pm ET (0017 GMT)
Commercial Space Federation (CSF) Welcomes New Associate Member
Commercial Space Federation — 8:12 pm ET (0012 GMT)
Iridium NTN Direct Begins Live Testing with Mlink
Iridium — 8:07 pm ET (0007 GMT)





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