June 2019
Does the speed of light change with time?
... precision experiment. The stable and accurate time delivered by ACES will be used to perform space-to-ground as well as...to older models for a small but growing number of researchers. ACES, the Atomic Clock Ensemble in Space, may potentially be the ...
October 2015
Space debris, Kessler Syndrome, and the unreasonable expectation of certainty
...). Finally, we have to pay $100 for every ace that is left on the table, which represents the ... cost of $10, what is the probability that we have removed an ace? The probability of an ace is four divided by 52; in other words about 0.08 or 8%. Thus...
January 2018
Creating a viable cislunar economy
...business model that would build the infrastructure incrementally Together, ACES and XEUS form the elements of a fully reusable...the cislunar econosphere is highlighted below. XEUS, the ACES stage equipped with a landing kit. The transportation ...
June 2014
In thrall to a star: understanding the Sun will help us understand our own climate and environment
... extreme UV images from the SOHO/ EIT telescope with the bulk solar wind speed measured by the ACE satellite superimposed. The largest flares are associated with significantly enhanced proton fluxes (courtesy of www.lmsal...
May 2021
Forecasting space-weather effects on Earth
... wind measurements from satellites such as NOAA’s Deep Space Climate Observatory (DSCOVR) or NASA’s Advanced Composition Explorer (ACE). These satellites orbit in a near-Earth location about 1 percent of the distance from the Earth to the Sun...
January 2023
Private space stations and NASA’s effort to re-invent itself
...’s new reality. About the author Joseph N Pelton, Chairman of the Alliance for Collaboration in the Exploration of Space (ACES Worldwide), is the award-winning author of some 50 books including The Space Safety Institute: A New Way to Safety...
