Sierra Nevada Corporation’s (SNC) Dream Chaser spacecraft passed a key milestone for NASA’s Commercial Resupply Services 2 (CRS-2) contract, validating design performance and clearing the way for full spacecraft production. The milestone marks completion of Integration Review 4 (IR4) demonstrating NASA’s confidence in the safety and maturity of Dream Chaser’s design.
ESA’s technical center in the Netherlands has begun running a pulsar-based clock. The ‘PulChron’ system measures the passing of time using millisecond-frequency radio pulses from multiple fast-spinning neutron stars.
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