ESA Confirms 3I/ATLAS Earth Proximity Date

Okay, here’s a breakdown of the⁤ key information‍ from the provided text, formatted for clarity:

Main Topic: Comet 3I/ATLAS – An interstellar comet currently approaching Earth.

Key Facts⁤ about 3I/ATLAS:

* Discovery: Detected by the Earth Impact Alert System on July 1, 2025.
* Origin: The third object detected originating from outside ⁣ our ⁤solar system.Its name reflects this (“3I” signifies ⁤interstellar).
* Speed: Exceptionally fast – at least 221,000 kilometers per hour (unprecedented for a visitor to our solar system). It’s not substantially affected by the⁢ Sun’s‍ gravity due ⁢to this speed.
* Size: estimated by NASA to be “a ⁤few” kilometers in diameter, but not officially confirmed.
* Composition: An icy nucleus⁣ with a coma (cloud of gas and dust), classifying it as ‍a comet.
* Age: Formed billions of years ago.
* ‍ Current Location/Trajectory:

* Discovered 670 million kilometers from the Sun (within Jupiter’s orbit).
* Closest⁢ approach to Mars: October 3rd (30 ⁤million kilometers).
* ‍ Closest approach to the Sun: October 30th (210 ⁣million kilometers).
* Will reach its closest point to Earth in the coming days (date not specified).

Why it’s ⁣meaningful:

* Interstellar⁣ comets are rare and provide⁤ clues about ‍the formation of planetary systems beyond our own.
* Its unusual characteristics (speed, origin) make it a fascinating subject for astronomers.

Other Information:

* ⁣ The article⁣ links to an interview with physicist Javier Santaolalla about the comet (https://www.nationalgeographic.com.es/ciencia/javier-santaolalla-fisico-divulgador-sobre-3iatlas-cosas-raras-son-muy-comunes-ciencia_26568).
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