Comet C/2025 A6 Lemmon to make closest approach to Earth on October 21

Comet C/2025 A6 (Lemmon) will pass at its minimum distance from Earth - around 89 mln km - on October 21, according to the Solar Astronomy Laboratories of the Space Research Institute and the Institute of Solar-Terrestrial Physics of Siberian Branch of the Russian Academy of Sciences.

Planetary asteroid and comet defense system may appear in ten years, scientist says

A planetary system for protection of the Earth from comet and asteroid threat may gain tangible shape in ten years, and technological basis for such system already exists, says Natan Eismont, lead researcher at the Russian Academy of Sciences’ Space Research Institute.

ESA Begins Sharing Philae Data From Icy Comet Surface

Scientists with the European Space Agency say comets could serve as cosmic laboratories in which some of the essential elements of life are assembled.

European comet probe wakes up from hibernation

European Space Agency's Philae probe has woken up and made contact with controllers, seven months after it went into hibernation on the comet 67P/Churyumov-Gerasimenko.

Philae may not have energy to send results to Earth, says ESA

Europe's robot lab Philae may not have enough power to send to Earth the results of today's drill into the surface of its host comet, mission scientists have said.

The Rosetta comet landing has made history (Space probe, Philae, reaches comet’s surface first time in history)

After 10 years of hard work and one nerve-wracking night, the Rosetta mission has made history by landing on the surface of a comet.

Water on earth originated outside the solar system, scientists prove

Human beings have always obsessed over whether they are alone in the universe. Now scientists say they’ve proved that at least some of the water on Earth has to have originated from outside the solar system (and they add that it’s older than the sun).
The news has set the flying-saucer-sphere abuzz with the thought that other planets in the universe are therefore more likely to have had water, at some stage at least, and to therefore have developed life.

Rosetta space probe makes historic rendezvous with comet

European scientists announced the historic rendezvous on Wednesday between a comet and the Rosetta spacecraft after a 10-year, six billion-kilometre (3.7-billion-mile) chase through the solar system.

The scout Rosetta has now become the first envoy to orbit one of these wanderers of the solar system in deep space, the European Space Agency (ESA) said.

Scientists and spectators at ESA’s mission control in Darmstadt, Germany, cheered after the spacecraft successfully completed its final thrust to swing alongside comet 67P/Churyumov-Gerasimenko.

Rosetta spacecraft to be woken after nearly three years, ESA awaits signs of life

The European Space Agency (ESA) is awaiting signs of life from its comet-chasing spacecraft Rosetta. The probe - now in the vicinity of Jupiter's orbit - has been in hibernation for nearly three years. 

An internal "alarm clock" aboard the Rosetta spacecraft was scheduled to go off at 1000 UTC on Monday, waking it up from nearly three years of slumber. But given the six hours Rosetta would need to power up its system, plus the time needed for its signal to traverse the 807 million kilometers (501 million miles) to Earth, the European Space Agency (ESA) said it wasn't expecting to hear anything until the early evening.