Russian cosmonaut Ivan Vagner published a spectacular comet photo on his Twitter account (@ivan_mks63). He tweeted both in Russian and in English and said “During the next revolution I tried to capture the C/2020 F3 (NEOWISE) comet a bit closer, the brightest one over the last 7 years. Its tail is quite clearly visible from the International Space Station!”
How the moon was formed? The most widely accepted theory of the Moon’s origin is known as the Giant Impact Hypothesis. The standard giant impact hypothesis, sometimes called the Big Splash, or the Theia Impact suggests the Mars-sized body, called Theia, impacted Earth, creating a large debris ring around Earth, and the Moon formed out of that debris. The hypothesis additionally suggests that this collision also resulted in the 23.5° tilted axis of the earth, thus causing the seasons.
Planet Nine is a theoretical, undiscovered giant planet in the mysterious far reaches of our solar system. The presence of Planet Nine has been hypothesized to explain everything from the tilt of the sun’s spin axis to the apparent clustering in the orbits of small, icy asteroids beyond Neptune.
But does Planet Nine actually exist?
This awesome map, using imagery taken by NASA’s Lunar Reconnaissance Orbiter (LRO), enables us to explore Moon within our browsers.
All stars emit varying amounts of light over time – and the Sun is no exception. Such changes in starlight can help us understand how habitable any planets around other stars are – a very active star may bombard its planets with harmful radiation. Now a new study, published in Science, shows that the Sun is significantly less active than other, similar stars.
Amateur astrophotographer Francisco Sojuel took an amazing photo of our satellite: because of the clouds, the Moon looks like Saturn – as if it is attempting to impersonate the ringed planet.
A very beautiful photo of Earth and Moon as seen through Saturn’s rings – an image taken by NASA’s Cassini spacecraft on April 13, 2017.
Astrophotographer Andrew McCarthy created a spectacular image of the Moon’s surface in great detail by combining 100,000 long-exposure photos.
Scientists have found the oldest material on Earth in a 7 billion-year-old meteorite – a space rock that is way older than the Earth and even older than our solar system! For comparison, the age of Earth is approximately 4.54 billion years, with an error range of about 50 million years. The Sun is about 4.6 billion years old.
NASA Goddard Planetary Scientist Dr. James O’Donoghue (@physicsJ) created another beautiful video showing the relative rotation speeds of Solar System planets.