The lower mantle, historically also called the mesosphere, occupies about 56% of the total volume of Earth, and is the region from 660 to 2,890 km (410 to 1,800 mi) below Earth's surface; between the …

Aug 1, 2023 · Below the asthenosphere and extending to about 2,900 km is the mesosphere or lower mantle.

The mesosphere is a layer of Earth's atmosphere. The mesosphere is directly above the stratosphere and below the thermosphere. It extends from about 50 to 85 km (31 to 53 miles) above our planet. …

Jan 20, 2026 · What is the mesosphere? The mesosphere is a layer of Earth’s atmosphere. The mesosphere is located above the stratosphere and below the thermosphere. The mesosphere lies …

Jun 13, 2025 · The mesosphere is a region of the Earth's interior, situated between the crust and the lower mantle, characterized by a unique chemical composition and mineralogy.

Nov 7, 2025 · The mesosphere is a layer of the Earth's atmosphere that extends from about 50 to 85 kilometers (31 to 53 miles) above the Earth's surface. The mesosphere consists mainly of oxygen, …

Nov 27, 2025 · Discover the vital role of the mesosphere in protecting Earth from debris, regulating global circulation, and indicating atmospheric health.

This picture explains about the mesosphere. The mesosphere is a layer of Earth's atmosphere. It starts about 50 km (31 miles) above the ground and goes all the way up to 85 km (53 miles) high. The layer …

The mesosphere is a layer within the Earth's atmosphere that extends from about 50 kilometres height (above the stratosphere) and about 90 kilometres (below the thermosphere). Like tropospheric …

The mesosphere (/ ˈmɛsəsfɪər, ˈmɛz -, ˈmiːsə -, - zə -/; [1] from Ancient Greek μέσος (mésos) 'middle' and - sphere) is the third layer of the atmosphere, directly above the stratosphere and directly below …