June 2019
Does the speed of light change with time?
... accurate than a clock on Earth because our planet’s gravity will not interfere with the vibration of atoms housed inside... in a Big Bang. As t increased expansion slowed due to G (gravity) and M (mass). The equation predicts that c is still slowing at...
March 2016
Rosetta – Starting from Scratch
... the mission had to make use of a trick called gravity assist, whereby a trajectory is designed such that the spacecraft... flies in the vicinity of a planet, and uses its gravity field for a further acceleration in its heliocentric orbit - thereby...
January 2020
Old rocks, new tricks - a lunar link to modern volcanology
...rocks, and how the Moon’s comparatively simple evolution, and lower gravity, provides a test of a new idea of how those crystals... evolved on Earth has been subject to the same gravity underpinning the dynamic process. Using this natural phenomenon as...
October 2020
Microgravity and its effects on the human brain
...varying physical conditions but one constant factor which has remained largely unchanged throughout time is Earth’s 1G gravity force. After millennia of evolution human organs and physiological systems all function according to the parameters imposed...
August 2021
Born to juggle in space
... my vision for Space Juggling. Language is especially critical when your opportunities to practice are limited, such as in zero gravity. In 2016, when I went on my first parabolic flight, it was interesting to hear how other people spoke about their...
February 2023
How to grow plants in a spacecraft
... major hazards appear during long spaceflights: space radiation, isolation and confinement, distance from Earth, low gravity, and the hostile and closed environment of a spacecraft. Living plants and freshly grown food could play...
