All articles tagged with #rosetta mission
NASA's Astronomy Picture of the Day features a 3D stereo anaglyph of Comet 67P, created from images taken by the Rosetta spacecraft in 2015. The visualization highlights the comet's active surface and jets near its closest approach to the Sun.
A new study reanalyzing data from the European Space Agency's Rosetta mission suggests that comets, particularly Jupiter-family comets like Comet 67P, may have played a significant role in delivering water to Earth. The study found that the deuterium-to-hydrogen (D/H) ratio of Comet 67P is closer to Earth's than previously thought, indicating that comets could have been major contributors to Earth's water supply. This challenges earlier beliefs that comets were unlikely sources of Earth's water.
A new study suggests that comets may have delivered water to Earth, despite previous doubts raised by the 2014 Rosetta mission's findings. The mission found high deuterium levels in comet 67P, conflicting with Earth's water signature. Researchers now propose that cometary dust may have skewed these measurements, as deuterium-rich water adheres to dust grains, potentially altering observed ratios. This insight supports the theory that Jupiter-family comets contributed to Earth's water supply.
A NASA-led study has found that water on Comet 67P/Churyumov–Gerasimenko shares a similar molecular signature with Earth's oceans, suggesting comets could have contributed to Earth's water supply. This challenges previous findings from the Rosetta mission, which showed high deuterium levels in 67P's water. The new research indicates that cometary dust may have skewed earlier measurements, reopening the debate on comets' role in delivering water to Earth and offering insights into the early solar system's formation.