Skip to main content

Featured

Mars and Earth - Small difference & big consequences

Einstein's theory of relativity suggests that time is not a constant and can vary based on gravitational fields and speed. In a strong gravitational field, time moves slower compared to a weaker one. Since Mars has a weaker gravitational field than Earth, time actually flows slightly faster there.  This concept has implications for future space missions, as the timing of communication and operation of spacecraft will need to account for this difference in how time elapses on Mars compared to Earth. Missions may need to adjust their schedules, operations, and technology to ensure accuracy and synchronization with Earth. Basically, the moment you bring gravity and velocity into the picture, time stops behaving like the simple, universal tick‑tock we experience in everyday life. And you’re absolutely right: Mars’ weaker gravity means clocks there run a little faster than clocks on Earth. What’s fascinating is how small the difference is—and how big the consequences become ...

NASA's TESS helps astronomers study red-giant stars, examine a too-close planet

Astronomers have been studying two red-giant stars -- older, 'retired' stars no longer burning hydrogen in their cores. The study details an interesting case of planetary evolution and demonstrates how star studies can be an important part of the mission's search for planets beyond our solar system.

from Space & Time News -- ScienceDaily https://ift.tt/2QJi5Ev

Comments

Popular Posts