Moon Landing Actual

The speed of a crash landing on its surface is typically between 70 and 100% of the escape velocity of the target moon, and thus this is the total velocity which must be shed from the target moon's gravitational attraction for a soft landing to occur. For Earth's Moon, the escape velocity is 2. 38 kilometres per second (1. 48 mi/s). The change in velocity (referred to as a delta-v) is usually...

Voyager 2 at Uranus in 1986

In the early space age, it was realized that a periodic alignment of the outer planets would occur in the late 1970s and enable a single probe to visit Jupiter, Saturn, Uranus, and Neptune by taking advantage of the then-new technique of gravity assists. NASA began work on a Grand Tour, which evolved into a massive project involving two groups of two probes each, with one group visiting Jupiter,...

Tom DeLonge a Lonely Astronaut

DeLonge grew up in the suburbs of Poway, California, where he embraced skateboarding at an early age. When DeLonge received his first guitar, he began writing punk rock songs. He formed Blink-182 with bassist Mark Hoppus and drummer Scott Raynor during his high school years. The band created a following in the mid-1990s through independent releases and relentless touring, particularly in their...

Mars Rover Equipment

There have been four successful robotically operated Mars rovers, all managed by the Jet Propulsion Laboratory: Sojourner, Opportunity, Spirit and Curiosity. On January 24, 2016, NASA reported that current studies on Mars by Curiosity and Opportunity (the latter now defunct) would be searching for evidence of ancient life, including a biosphere based on autotrophic, chemotrophic or...