with oceans, lakes and rivers, "but the water disappeared about 3 billion years ago". This means Mars rovers have explored "dried up lakebeds and empty river channels". But the data from a NASA ...

The ongoing fire currently devastating the Pacific Palisades neighborhood of Los Angeles is now the most destructive in the ...

NASA has unveiled the initial analysis results of samples collected from the asteroid Bennu in 2020 by the Osiris-Rex ...

The area containing the clay-bearing mounds is geologically connected to Oxia Planum, which is where Rosalind Franklin will be headed when it launches in 2028 in search of past life on Mars. It now ...

Many believe these low-lying plains were once host to giant lakes, rivers, or possibly oceans. Accumulating evidence increases the idea that Mars must have been much more wet a place during the ...

Indeed, the evidence is now overwhelming that Mars was once warmer, and wet, with rivers, lakes and possibly even oceans that existed almost four billion years ago. Now researchers led by McNeil have ...

Related: Ocean's worth of water may be buried within Mars — but can we get to it? On Earth — for example, in the western United States — we find such hills in the form of buttes and mesas in ...

Scientists hope to uncover signs of past life and confirm the existence of an ancient ocean. The findings, published in Nature Geoscience on 20 January, provide fresh insights into Mars' wet ...

The new work suggests that the edge of the dichotomy was eroded back by hundreds of kilometers during the time when an ocean might have occupied Mars' northern hemisphere. To view the Martian ...

One question McNeil and his colleagues explore in the study is whether an ancient northern ocean on Mars may have caused the erosion, but the idea is a controversial one debated by scientists.