With an orbit of 647 days, HD 20794 d is similar to Mars in our solar system. However, its orbit around the star is highly ...

Mar. 13, 2025 — Water once existed in abundance of at the surface of Mars. How much of that water has been stored in the planet's crust is still unclear, according to a new ...

Enjoy the Mars Triangle while it still lasts, for after mid-March it will be no more. We're now just past the midpoint of astronomical winter — that moment marking the midway point between ...

SpaceX's Starship rocket is set to depart for Mars at the end of next year, carrying Tesla humanoid bot Optimus, the ...

Mars has shone red in the night sky for as long as humans have gazed up at the cosmos, fascinating people from the ancient Romans to the present day. "The fundamental question of why Mars is red ...

Researchers are looking underfoot to uncover the mysterious past of Mars: Martian regoliths in the soil. Their water storage capabilities may help us understand the change in water on Mars over time.

Artist's concept of a potentially habitable super-Earth orbiting a star called HD 20794. Illustration credit: Gabriel Pérez ...

With its iconic rusty hue, Mars has long been called the red planet. Now, scientists may have discovered the potential source of that distinctive coloring, overturning a popular theory in the process.

NASA’s Mars Sample Return (MSR) mission promises to fill significant gaps in our understanding of the universe and propel humanity forward in a new phase of the space race. Exploring the cosmos ...

This zone depends on several factors, mainly the stellar properties. For stars such as the Sun or HD 20794, it can extend from 0.7 to 1.5 astronomical units (AU), encompassing not only the orbit of ...