Which of the following constellations lie along the ecliptic?

The constellation Scorpius, along with Gemini and Taurus, lies along the ecliptic, which is the apparent path that the Sun takes through the sky throughout the year. The ecliptic plane is also the plane in which most of the Solar System's planets orbit, so it constitutes a significant region in the celestial sphere.

Scorpius, with its bright red heart (Antares), is one of the prominent summer constellations and sits near the ecliptic in the southern sky. Taurus is known for its bright star Aldebaran and the Pleiades star cluster, while Gemini features the well-known twin stars Castor and Pollux. All three of these constellations have significant positions along the ecliptic.

On the other hand, the other options include constellations that do not lie along the ecliptic. Canis Major, Andromeda, and Pegasus are located outside the ecliptic path. Similarly, Virgo and Libra align near the ecliptic, but Ursa Minor lies far off from it. Orion and Cassiopeia are known fixtures in the sky but are not on the ecliptic either; Orion is on the celestial equator while Cassiopeia is located in