CosmoFacts

Directions

CosmoFacts Exploring the mysteries of space, strange worlds & cosmic phenomena. 🚀
Discover the universe, one fascinating fact at a time. 🔭✨

The Sun doesn’t stay still in space. Along with Earth and the rest of our solar system, it travels around the center of ...
08/19/2026

The Sun doesn’t stay still in space. Along with Earth and the rest of our solar system, it travels around the center of the Milky Way at roughly 800,000 km/h. One complete journey, called a galactic year, takes about 225–250 million Earth years.
Since the Sun formed around 4.6 billion years ago, it has completed roughly 20 trips around the galaxy. In about 5 billion years, the Sun is expected to exhaust the hydrogen fuel in its core and expand into a red giant. By then, our solar system will have traveled around the Milky Way many more times.

In 2014, astronomers made a surprising discovery: an asteroid-like object called Chariklo had its own ring system. It wa...
08/19/2026

In 2014, astronomers made a surprising discovery: an asteroid-like object called Chariklo had its own ring system. It was the first time rings had ever been found around a small Solar System body rather than a giant planet. Chariklo has two narrow, dense rings made of material such as ice and rocky debris. The discovery showed that ring systems can exist around much smaller objects than scientists once expected.

Located about 150 light-years from Earth, the planet HD 209458b is losing nearly 10,000 tonnes of its atmosphere every s...
08/19/2026

Located about 150 light-years from Earth, the planet HD 209458b is losing nearly 10,000 tonnes of its atmosphere every second into space.
HD 209458b is a giant gas planet that orbits extremely close to its parent star, making it incredibly hot. The star's intense radiation heats the planet's upper atmosphere until it expands and escapes into space, creating a huge cloud of gas around the planet. This process, known as atmospheric escape, gives scientists valuable clues about how planets evolve over billions of years. Even though the planet is losing an enormous amount of gas every second, it is so massive that it is expected to survive for a very long time.

NASA's James Webb Space Telescope has detected carbon dioxide on the surface of Europa, one of Jupiter's largest moons. ...
08/18/2026

NASA's James Webb Space Telescope has detected carbon dioxide on the surface of Europa, one of Jupiter's largest moons. Scientists believe this carbon likely came from Europa's hidden ocean beneath its thick icy shell rather than from space. Carbon is one of the essential ingredients for life as we know it, making this discovery especially exciting. While it does not prove that life exists on Europa, it strengthens the idea that the moon may have the right conditions to support it. Future missions will study Europa in greater detail to learn whether its vast underground ocean could be habitable.

There are about 2 trillion galaxies in the observable universe. The universe is unimaginably vast, stretching far beyond...
08/18/2026

There are about 2 trillion galaxies in the observable universe. The universe is unimaginably vast, stretching far beyond what we can ever see. Because light travels at a finite speed and the universe has a limited age, we can only observe a region known as the observable universe. Even within this visible portion alone, astronomers estimate there are around 2,000,000,000,000 galaxies. Each galaxy contains millions to trillions of stars, along with planets, gas, dust, and other cosmic objects. Beyond the observable universe, there may be countless more galaxies that remain forever out of our view, making the true size of the universe one of the greatest mysteries in science.

🌌 S4714: The Star Racing Through the Heart of the Milky WayS4714 is one of the most extraordinary stars ever observed. I...
08/18/2026

🌌 S4714: The Star Racing Through the Heart of the Milky Way

S4714 is one of the most extraordinary stars ever observed. It orbits Sagittarius A*, the supermassive black hole at the center of our Milky Way, and reaches an incredible speed of about 24,000 kilometers per second roughly 8% of the speed of light, or about 86 million km/h.

Its orbit is extremely elongated. When S4714 swings closest to Sagittarius A*, it comes to within about 1.9 billion kilometers of the black hole according to the original 2020 study. It then travels back outward, completing an orbit in roughly 12 years.

The star's incredible speed is caused by the immense gravity of Sagittarius A*. Studying stars like S4714 gives astronomers a rare opportunity to observe how stars move in an extreme gravitational environment and to test predictions of Einstein's theory of relativity.

Even more fascinating, S4714 is part of a group of fast-moving stars found close to the galactic center. Their unusual orbits suggest that the region around Sagittarius A* may contain many more hidden stellar mysteries waiting to be discovered.

NASA’s Dragonfly mission is set to launch in July 2028 and reach Titan, Saturn’s largest moon, in late 2034. The nuclear...
08/14/2026

NASA’s Dragonfly mission is set to launch in July 2028 and reach Titan, Saturn’s largest moon, in late 2034. The nuclear-powered rotorcraft will fly across Titan’s thick atmosphere, traveling between different locations to study its unusual surface and chemistry.

Dragonfly will explore organic-rich dunes and other fascinating landscapes, collecting surface samples and analyzing them with onboard instruments. Scientists hope the mission will reveal how far Titan’s complex chemistry has progressed toward the kinds of processes that preceded life on early Earth.

Unlike a traditional rover, Dragonfly can fly from one site to another, allowing it to investigate many different environments during its mission. Titan’s dense atmosphere and low gravity make it an especially interesting world for this kind of exploration.

About 48 light-years from Earth lies a rocky world that has caught scientists’ attention. It orbits within its star’s ha...
08/14/2026

About 48 light-years from Earth lies a rocky world that has caught scientists’ attention. It orbits within its star’s habitable zone, where conditions could allow liquid water to exist.

Observations suggest this planet may have an atmosphere, making it an exciting target for further study. Scientists hope future observations can reveal more about its atmosphere, surface, and potential to support water.

This distant world could provide important clues in the search for habitable planets beyond our Solar System.

Even if a spaceship could travel at the speed of light, it still could not reach the edge of the known Universe. The rea...
08/13/2026

Even if a spaceship could travel at the speed of light, it still could not reach the edge of the known Universe. The reason is that the Universe is expanding, and extremely distant regions of space can move away from us faster than light due to the expansion of space itself. This means some galaxies are becoming permanently unreachable, no matter how fast we travel. The Universe has no known physical “edge” that a spaceship could simply arrive at it is space itself that is expanding on the largest scales.

🌑 This amazing image captured the last solar eclipse as the Moon passed in front of the Sun, creating a rare and breatht...
08/13/2026

🌑 This amazing image captured the last solar eclipse as the Moon passed in front of the Sun, creating a rare and breathtaking view in the sky.

For a short time, the Moon covered part of the Sun and transformed the familiar daytime sky into a remarkable celestial scene. The alignment of the Sun, Moon, and Earth had to be nearly perfect for the eclipse to happen.

Moments like this remind us how precisely our cosmic neighborhood moves through space and how beautiful the result can be when we simply look up.

Address

Los Angeles, CA

Website

Alerts

Be the first to know and let us send you an email when CosmoFacts posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Share