The Earth and other planets in our solar system formed when a. smaller bits of matter clumped together into larger and larger masses b. the young Sun produced huge flares which then solidified into planets c. a nearby star exploded, sending solid fragments of itself into space d. larger objects broke into fragments, each one becoming a planet or moon MESSENGER was the first spacecraft to orbit Mercury; the second one, on its way now, is called a. Mariner 10 b. Voyager 2 c. Dawn d. BepiColombo e. New Horizons

The Earth and other planets in our solar system formed when a. smaller bits of matter clumped together into larger and larger masses b. the young Sun produced huge flares which then solidified into planets c. a nearby star exploded, sending solid fragments of itself into space d. larger objects broke into fragments, each one becoming a planet or moon MESSENGER was the first spacecraft to orbit Mercury; the second one, on its way now, is called a. Mariner 10 b. Voyager 2 c. Dawn d. BepiColombo e. New Horizons

	a.	smaller bits of matter clumped together into larger and larger masses
	b.	the young Sun produced huge flares which then solidified into planets
	c.	a nearby star exploded, sending solid fragments of itself into space
	d.	larger objects broke into fragments, each one becoming a planet or moon