NASA has awarded the Ad Astra Rocket Co. a $4 million, 2-yr contract for the continued development of the company’s VASIMR concept, which Astra claims has the potential to reach Mars with human explorers within 45 days using a nuclear power source rather than solar power.
Can You See the Earth and Moon from Mars?
Frozen clues: Mars’ crater deposits reveal a history of shrinking ice volumes through ages - EurekAlert!