James Webb Space Telescope Observations Map Dark Matter via Gravitational Lensing

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James Webb Space Telescope Observations Map Dark Matter via Gravitational Lensing

Science & Technology
James Webb Space Telescope Observations Map Dark Matter via Gravitational Lensing

Astronomers, based on observations from the James Webb Space Telescope (JWST), unveil a detailed map of dark matter. The map is derived via gravitational effects, as dark matter is inferred through its influence on ordinary matter.

James Webb Space Telescope (JWST) and Dark Matter:

Dimension Key Details
Nature Hypothesised form of matter that is invisible and is inferred to exist based on gravitational effects on ordinary matter (stars, planets, moons).
Interaction with light Does not emit, absorb, or reflect light and barely interacts with normal matter.
Composition of the Universe Normal or visible matter (5%), dark matter (27%), dark energy (68%).
Mandate Enables exploration of the Universe’s history from the first luminous objects after the Big Bang to the formation and evolution of galaxies, stars, planetary systems, and our Solar System.
Launched year Launched in 2021.
Location Orbits the Sun at the second Lagrange point (L2).
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Attempt Possible Qs

Q 1 / 4

With reference to dark matter, consider the following statements:

1. It does not emit, absorb, or reflect light.
2. It barely interacts with normal matter.
3. It is directly observed using optical telescopes.

Which of the statements given above are correct?