April 2025
Spacecraft anomalies and insurance losses
... capacity is lost, this would normally result in a 50 percent payout relative to the insured value of the spacecraft at the time of loss....in Figure 3, by measuring the insurance loss rate relative to the platform-family launch sequence number, it ...
07 October 2020
The Nobel Prize in Physics 2020 awarded to three astrophysicists
...direct consequence of Albert Einstein’s general theory of relativity. Einstein did not himself believe that black holes ... as the most important contribution to the general theory of relativity since Einstein. Reinhard Genzel and Andrea Ghez each lead ...
July 2014
X-51A Waverider, hypersonics, and the potential of airbreathing engines
... was in turn constructed by the Rocketdyne Corporation1, burning a relatively conventional jet fuel. Scramjets had long been seen as a ..., including the X-51A, produce efficient lift with relatively low drag. Sharp leading edges and pointed noses also...
July 2014
The hypersonic grail: advances at DARPA, AFRL and beyond
...hypersonic flight have, for the past five decades, eluded us Relatively close on the heels of these two successes come DARPA’s ...practical hypersonic global and space transportation. Someday relatively soon, when hypersonic vehicles are technically and...
February 2016
How to Build Planets
...the Solar System The origins of a protoplanetary disc start in the relatively small fraction of gas that exists in dense, molecular clouds. These...out of the system. Not only that but if the relative velocity of the colliding grains is too large, the ...
February 2016
The Benefits of a British Spaceport
... from integration and waiting facilities there would be relatively little required to adapt existing facilities to Virgin’s... this would be an ideal site.’ Brancaster was also relatively near Hatfield, Stevenage, and London, all important centres ...
