Comet ISON and Its Journey

What is the significance of Comet ISON's journey past Mars and the Sun?

• It could become a bright comet visible from Earth.

• It will change the orbit of Mars.

• It will be the first comet to pass by Mars.

• It will collide with Mars.

What is the main challenge faced by the HiRISE telescope in observing Comet ISON?

• It has a limited exposure time compared to other space telescopes.

• It cannot detect the comet's atmosphere.

• It is not designed for rapid imaging.

• It is too far from Mars to capture images.

What happens when Comet ISON crosses the 'frost line'?

• The comet will change its trajectory.

• The comet will start to melt completely.

• The comet could erupt in geysers of gas.

• The comet will slow down.

What could indicate that Comet ISON's nucleus is larger than 0.5 km?

• It will change color.

• It will survive its close approach to the Sun.

• It will become invisible.

• It will split into two comets.

What is the purpose of the worldwide observing campaign for Comet ISON?

• To ensure every telescope on Earth is pointed at the comet.

• To track the comet's path to Jupiter.

• To capture images of Mars.

• To observe the comet's collision with the Sun.