When astronomers first spotted a faint, fast-moving object racing through the outer Solar System in mid-2025, few expected it ...

In a few billion years, our Sun will become so violently hot that it could wipe out all life in the Milky Way. Yet, paradoxically, the same star that could destroy life may also help make distant ...

Earth reaches its closest point to the sun in its 2026 orbit on Jan. 3. The sun will appear larger in the sky than on any ...

The sun rises and sets every day. We plan our lives around it. It's ironic, then, that "we know so little about the star at the center of our solar system," says Matina Gkioulidou, a space physicist ...

NASA has been slowly working the Parker Solar Probe closer and closer to the Sun ever since its launch in 2018. The probe, which is heralded as the fastest object humans have ever made, has broken ...

First, let’s discriminate between expansion and expulsion. Expansion happens because the thermal pressure from the increased energy production in the Sun’s interior exceeds the gravitational force ...

The European Space Agency has achieved yet another "first" for humankind by capturing the first photos of the Sun's south pole. These images were captured by the agency's Solar Orbiter spacecraft, and ...

Understanding how the Sun and its activity impact Earth and the solar system is important because solar storms affect the technology we use on Earth and in space. Now, a team of heliophysicists and ...

How big it is: 865,000 miles (1.392 million kilometers) across How far away it is: 93 million miles (150 million km) What type of star it is: A yellow dwarf star The sun is the star at the center of ...