Scientists propose that a moon base could act as an isolated first line of biological defense against extraterrestrial ...
The race to return to the Moon has quietly changed its ambitions. Landing and ...
Frederick Moxley of the Strategic Threat Analysis and Research Laboratories in Idaho and Anthony Ricciardi of McGill ...
"A three-body problem is extremely complicated. Now we're dealing with four: the sun, Earth, the moon and Mars. The heavy lifting was more challenging than I initially thought." When you purchase ...
A researcher says he found a possible shortcut to Mars that would halve the time it takes to travel to the planet and back to less than a year.
SpaceX is taking another major step toward deep-space exploration, announcing plans for two groundbreaking commercial human spaceflight missions that will carry private astronauts beyond Earth orbit ...
Free-return trajectory – a path that loops around the Moon and returns to Earth without propulsion Permanently shadowed regions – areas near the lunar poles that never receive sunlight and may contain ...
From Mars, Earth transits the Sun four times in a 284-year cycle. The transits occur in either May or November at intervals of 100.5, 79, 25.5, and 79 years. During these events, Earth and the Moon ...