Slices from the edge of Mars reveal a layered atmosphere of delicate complexity. A European spacecraft has captured a luminous mille-feuille of dust enveloping the red planet in unprecedented detail.
Space Exploration
Sep 29, 2025
0
1
The four astronauts set to climb aboard the first Orion spacecraft to fly humans have already given it a name.
Space Exploration
Sep 29, 2025
1
3
NASA's first radar images from a new Earth-mapping satellite show the Maine coast and North Dakota farmland in incredible detail.
Planetary Sciences
Sep 25, 2025
0
4
For 24 hours a day, seven days a week since November 2000, NASA and its international partners have sustained a continuous human presence in low-Earth orbit, including at least one American—a streak that will soon reach ...
Space Exploration
Sep 24, 2025
1
18
An international study led by researchers at São Paulo State University (UNESP) in Brazil has identified a little-known but potentially significant threat: Asteroids that share Venus's orbit and may completely escape current ...
Astronomy
Sep 23, 2025
0
99
After multiple delays, the first crewed Artemis flight around the moon could be less than 20 weeks away, NASA officials said Tuesday, putting the space program one step closer to returning to the moon itself in its "second ...
Space Exploration
Sep 23, 2025
0
33
Advanced space travel relies on a fundamental understanding of the restricted three-body problem (RTBP), in which one of the three bodies—typically a spacecraft—is so small that its gravity doesn't affect the other two, ...
Space Exploration
Sep 22, 2025
0
28
A supply ship arrived at the International Space Station on Thursday after a day's delay due to a premature engine shutdown.
Space Exploration
Sep 18, 2025
0
0
Blue Origin is committed to making a permanent human presence in space a reality. To this end, they have developed the New Shepard and New Glenn rockets to send payloads to orbit, and aim to create super-heavy launch vehicles ...
Space Exploration
Sep 17, 2025
0
22
A newly launched supply ship has run into engine trouble that is preventing it from reaching the International Space Station.
Space Exploration
Sep 17, 2025
0
0
In physics, an orbit is the gravitationally curved path of one object around a point or another body, for example the gravitational orbit of a planet around a star.
Historically, the apparent motion of the planets were first understood in terms of epicycles, which are the sums of numerous circular motions. This predicted the path of the planets quite well, until Johannes Kepler was able to show that the motion of the planets were in fact elliptical motions.[citation needed] Isaac Newton was able to prove that this was equivalent to an inverse square, instantaneously propagating force he called gravitation.[citation needed] Albert Einstein later was able to show that gravity is due to curvature of space-time, and that orbits lie upon geodesics. This is the current understanding.
This text uses material from Wikipedia, licensed under CC BY-SA
