Earth and Venus DO follow elliptical orbits around the sun (though the orbit of Venus is only very slightly elliptical). Earth's orbit being elliptical is, combined with our axial tilt, why we have seasons.
It doesn't. The earth orbits the sun in an elliptical fashion.
An elliptical shape.
All closed orbits are elliptical.
All the planets have elliptical orbits but Uranus and Neptune have slightly different orbits than other planets on solar system.
galelio
Elliptical orbits of the planets around the sun actually match what we observe. Newton's Theory of Universal Gravitation states that planets will move around the sun in elliptical orbits.
That they followed elliptical orbits.
It doesn't. The earth orbits the sun in an elliptical fashion.
ALL orbits are elliptical.
elliptical
elongated elliptical orbits around the sun
elliptical
An elliptical shape.
It was Kepler who discovered that the planets orbits are elliptical.
All closed orbits are elliptical.
The orbits of the planets around the Sun are not spherical as many people imagine but are in fact elliptical.
Gravity is the short answer