Sun

What Is Space Weather?

Space weather describes changing conditions in the Sun, solar wind, magnetosphere, ionosphere and thermosphere that can affect technology and operations near Earth. It i…

What Is a Solar Flare?

A solar flare is a rapid release of magnetic energy in the Sun's atmosphere. Flares can brighten dramatically in X-rays and extreme ultraviolet radiation and can acceler…

How Do Scientists Forecast Auroras?

Aurora forecasts combine measurements of the Sun and solar wind with models of Earth's magnetosphere. Scientists are not predicting a fixed light show at a precise stree…

What Is a Supermassive Black Hole?

Supermassive black holes contain millions to billions of times the Sun's mass and are found at the centers of many large galaxies. Their enormous mass distinguishes them…

NASA reveals the reason why the entire Starlink satellite 'fleet' was crashed.

Shortly after launching 49 Starlink satellites, SpaceX Corporation

Shocking discovery: Is Earth drifting away from its parent star?

The average distance between Earth and the Sun is increasing, with the leading suspicion being that our parent star is becoming less dense.

What is the Solar System?

What is the Spring Equinox?

According to Western science, the vernal equinox is the day when the length of daylight and nighttime are equal at the equator; it marks the beginning of spring in the n…

Learn about the star Sirius.

Sirius is the brightest star in the night sky with an apparent magnitude of -1.47, nearly twice as bright as Canopus, the second brightest star.

10 greatest strategists of ancient China

Zhuge Liang, Sun Tzu, Wang Meng, Lü Bowen, Zhang Liang, Zhao Pu, and Jiang Ziya were outstanding heroes of ancient Chinese history.

Discovering a 13-billion-year-old 'world of giants'.

According to Space magazine, today these

If a planet capable of holding 1,321 Earths inside collided with the Sun, what would happen?

We all know the terrible consequences of a comet colliding with Earth. But what would happen if Jupiter crashed into the Sun?

The Solar System is far more complex than we think.

As the only highly intelligent life form in the Solar System, humans have existed on Earth for 5 million years.

Object 10 million times brighter than the Sun, breaks the laws of physics

An X-ray-emitting star located in the Messier 82 galaxy about 12 million light-years from Earth is so bright it breaks the laws of physics.

What matter on Earth can get close to the Sun without melting?

Many people might think that tungsten is the substance with the highest melting point on our planet, but that is not the case at all.