Created by the sun, the protective bubble of the heliosphere shields our solar system from harmful radiation. A new mission ...
A massive comet traveling through the solar system is much larger than previously thought and could be a remnant of alien ...
NASA’s IMAP mission will explore the heliosphere and study how it shields Earth from cosmic radiation and space weather.
New observations suggest that the dwarf planet Makemake is surrounded by faintly glowing methane gas. Scientists are unsure ...
In our own solar system, there are pretty good odds that you could stand on the surface of an asteroid and not even be able ...
The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously thought, astronomers say.
The spacecraft will map the boundaries of the heliosphere, study how Earth’s outer atmosphere reacts to solar activity and ...
Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.
The methane gas may constitute a rarefied atmosphere, or it may come from erupting plumes on Makemake’s surface.
Most of that brightness increase has been in the green part of the visible light spectrum, suggesting a “surge of gas production as the comet nears the Sun,” according to SpaceWeather. “The key ...