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Before yesterdayArs Technica

College lab class ends with 32 people on antibiotics for deadly germ exposure

By: Beth Mole
28 July 2026 at 17:49

A bizarre series of events in a college microbiology lab class left 33 peopleβ€”including students, professors, and lab workersβ€”believing they were exposed to a deadly germ. Of those, 32 began taking an antibiotic regimen as a precaution to prevent a life-threatening infection. Two also underwent lumbar puncturesβ€”aka spinal tapsβ€”after developing mild symptoms.

But none of them had actually been exposed to a dangerous pathogen, a fortunate twist in the strange incident, which otherwise stands to be a cautionary tale for the ages. The incident was published in a recent issue of Morbidity and Mortality Weekly Report.

It began with a simple laboratory exercise. The microbiology lab students were supposed to be given mystery bacteria by their instructors and then identify the microbe based on a series of biochemical tests and morphological characterization.

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Β© Getty | CAVALLINI JAMES

The Space Force is now seeking to buy up to $30 billion in rocket launches

20 July 2026 at 16:30

It seems as though $5.6 billion wasn't enough. That was the news from the US Space Force on Friday, when military officials announced they were tripling the maximum value of one of the service's National Security Space Launch contracts to $17 billion.

The expansion of the Space Force's National Security Space Launch (NSSL) Phase 3 contract comes as the Pentagon signals rising demand for military satellite launches. The NSSL program is set up to allow Space Systems Command, which oversees the Space Force's launch program, to select from a pool of launch providers for individual missions to deliver the military's satellites to orbit.

The NSSL program has two parts. Lane 1 covers the Space Force's more risk-tolerant missions, such as medium-lift launches with experimental payloads or rideshare missions carrying satellites for the Pentagon's surveillance or data relay constellations. Lane 2 includes higher-priority strategic missions, like the government's largest and most expensive spy satellites, or radiation-hardened communications satellites designed to survive a nuclear war.

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Β© SpaceX

The Space Force is now seeking to buy up to $30 billion in rocket launches

20 July 2026 at 16:30

It seems as though $5.6 billion wasn't enough. That was the news from the US Space Force on Friday, when military officials announced they were tripling the maximum value of one of the service's National Security Space Launch contracts to $17 billion.

The expansion of the Space Force's National Security Space Launch (NSSL) Phase 3 contract comes as the Pentagon signals rising demand for military satellite launches. The NSSL program is set up to allow Space Systems Command, which oversees the Space Force's launch program, to select from a pool of launch providers for individual missions to deliver the military's satellites to orbit.

The NSSL program has two parts. Lane 1 covers the Space Force's more risk-tolerant missions, such as medium-lift launches with experimental payloads or rideshare missions carrying satellites for the Pentagon's surveillance or data relay constellations. Lane 2 includes higher-priority strategic missions, like the government's largest and most expensive spy satellites, or radiation-hardened communications satellites designed to survive a nuclear war.

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Β© SpaceX

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