Stephen Clark
- Indexed articles, last 90 days
- 45
- Latest publication
- Sep 28, 2026
- Outlet visibility, for Ars Technica
- Top 50K sites
- Earliest in this view
- Jul 6, 2026
Latest articles
SpaceX's Starship goes orbital, deploying first next-gen Starlinks (opens the original)
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SpaceX’s Starship rocket thundered into the sky over South Texas early Monday. It was the 14th test flight of the world’s most powerful launch vehicle. This time, however, the rocket’s massive upper stage squeezed out some extra oomph from its Raptor engines and accelerated to orbital velocity. On all of Starship’s previous flights, SpaceX intentionally dialed back the full capability of the rocket to fly a suborbital trajectory, slow enough for Earth’s gravity to pull the vehicle back into the
With PRIMA, NASA will try to build a billion-dollar space telescope in record time (opens the original)
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The first in a new class of space telescopes is on track to reach the launch pad in the early 2030s, NASA announced this week. The PRIMA mission will be the first of NASA’s Probe Explorers, a new line of observatories intended to do more science for less money. The agency’s space telescopes typically fall into lower-cost “Explorer-class” missions, with cost caps in the range of a few hundred million dollars, or flagship observatories like the recently launched Nancy Grace Roman Space Telescope,
The Roman telescope has enough gas for 22 years, double NASA's expectations (opens the original)
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NASA’s Nancy Grace Roman Space Telescope is gliding toward its distant observation post on a pinpoint trajectory so precise that engineers estimate the spacecraft’s fuel load will last twice as long as their initial expectations, the space agency confirmed Monday. The $4.3 billion observatory’s designers originally planned to load enough propellant into Roman’s four fuel tanks for a minimum lifetime of five years, plus a potential five-year mission extension. That was a conservative estimate. NA
Some satellite companies still have an appetite for boutique launch services (opens the original)
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If you ask most satellite companies aside from SpaceX, they will tell you the world doesn’t have enough capacity for launching payloads into orbit. This is despite the blistering launch cadence we’ve seen around the world in recent years, led by SpaceX’s Falcon 9 rocket. Customers in any sector will, of course, usually welcome competition. Theoretically, competition will lead to lower prices and allow the best to rise to the top. It seems like the customers buying launch services were right. Spa
Europe will go it alone on Venus mission after NASA yanks radar instrument (opens the original)
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The European Space Agency is moving “full steam ahead” with development of a robotic mission to Venus after NASA officials determined they were unlikely to fulfill a commitment to provide a US-built radar instrument for the spacecraft, the mission’s project scientist said. The European orbiter, named Envision, will map the Venusian surface at 10 times higher resolution than the last radar mission sent to Venus by NASA in the 1990s. The planet is enshrouded in a blanket of thick clouds of sulfuri
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