Tag Archives: water

The surprising comet

As Rosetta began homing in on Comet 67P/Churyumov–Gerasimenko in the weeks leading up to its arrival in August 2014, it became very clear that this was no ordinary comet. But its striking shape was only just the...

First detection of molecular oxygen at a comet

ESA’s Rosetta spacecraft has made the first in situ detection of oxygen molecules outgassing from a comet, a surprising observation that suggests they were incorporated into the comet during its formation. This news story is mirrored from the main...

Rosetta’s first peek at the comet’s south p...

Using the Microwave Instrument for the Rosetta Orbiter (MIRO), scientists have studied the comet's southern polar regions at the end of their long winter season. The data suggest that these dark, cold regions host ice within the...

Comet surface changes before Rosetta’s eyes

In the months leading to the perihelion of Comet 67P/Churyumov-Gerasimenko, Rosetta scientists have been witnessing dramatic and rapid surface changes on the Imhotep region, as reported in a paper to be published in Astronomy & Astrophysics Since...

MIRO maps water in comet’s coma

In a paper accepted for publication in the journal Astronomy & Astrophysics, the MIRO team present their first map of water vapour in the coma of Comet 67P/Churyumov-Gerasimenko. MIRO, the Microwave Instrument for the Rosetta Orbiter, first...

Rosetta fuels debate on origin of Earth’s oceans

Rosetta has found that the composition of the water vapour at Comet 67P/C-G is significantly different to that found on Earth. The observations were made by the ROSINA instrument and are reported this week in the journal Science. Our full story...

MIRO bathes in water vapour

Rosetta’s MIRO instrument has detected an increase in the rate of water vapour coming from comet 67P/Churyumov-Gerasimenko over the past three months. This was reported by the MIRO team at the European Planetary Science Congress last week....

First detection of water from 67P/C-G

The Microwave Instrument for Rosetta Orbiter, MIRO, a high-resolution spectrometer, has made the first detection of water vapour coming from comet 67P/Churyumov-Gerasimenko. The result was submitted to the International Astronomical Union Central Bureau of Astronomical Telegrams, which...