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Mars reaches the same solar flux as that of the Earth when it first formed 4.5 billion years ago from today. [94] < 5 billion The Andromeda Galaxy will have fully merged with the Milky Way, forming an elliptical galaxy dubbed "Milkomeda". [97] There is also a small chance of the Solar System being ejected. [97] [110] The planets of the Solar ...
9.271 billion years (4.529 Gya): Major collision with a pluto-sized planetoid establishes the Martian dichotomy on Mars – formation of North Polar Basin of Mars; 9.3 billion years (4.5 Gya): Sun becomes a main sequence yellow star: formation of the Oort cloud and Kuiper belt from which a stream of comets like Halley's Comet and Hale-Bopp ...
1–5 billion Various The estimated end of the Sun's current phase of development, after which it will swell into a red giant, either scorching or swallowing Earth, will occur around five billion years from now. However, as the Sun grows gradually hotter (over millions of years), Earth may become too hot for life as early as one billion years ...
The Mars carbonate catastrophe was an event that happened on Mars in its early history. Evidence shows Mars was once warmer and wet about 4 billion years ago, that is about 560 million years after the formation of Mars. Mars quickly, over a 1 to 12 million year time span, lost its water, becoming cold and very dry.
Pre-Noachian: the interval from the accretion and differentiation of the planet about 4.5 billion years ago to the formation of the Hellas impact basin, between 4.1 and 3.8 Gya. [13] Most of the geologic record of this interval has been erased by subsequent erosion and high impact rates.
There are many theories about how the moon formed, but scientists mostly agree that about 4.5 billion years ago, a Mars-size object or a series of objects crashed into Earth and launched enough ...
If it feels like your week has been dragging on forever, consider this — a volcano on Mars once erupted for 2 billion years straight, which is nearly half of the planet's 4.5 billion-year lifetime.
4.6 billion years Today: Sun remains a main-sequence star. [117] 6 billion years 1.4 billion years in the future Sun's habitable zone moves outside of the Earth's orbit, possibly shifting onto Mars's orbit. [120] 7 billion years 2.4 billion years in the future The Milky Way and Andromeda Galaxy begin to collide. Slight chance the Solar System ...