It might be in the spotlight

This time we are looking on the crossword clue for: It might be in the spotlight.
it’s A 28 letters crossword puzzle definition. See the possibilities below.

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Possible Answers: XENON.

Last seen on: –Wall Street Journal Crossword – July 04 2019 – First Flag
Wall Street Journal Crossword – July 04 2019 – First Flag
Wall Street Journal Crossword – July 04 2019 – First Flag
Wall Street Journal Crossword – July 04 2019 – First Flag
Wall Street Journal Crossword – July 04 2019 – First Flag
Wall Street Journal Crossword – July 04 2019 – First Flag
Wall Street Journal Crossword – July 04 2019 – First Flag
Wall Street Journal Crossword – July 04 2019 – First Flag

Random information on the term “XENON”:

In astronomy and cosmology, baryonic dark matter is dark matter composed of baryons. Only a small proportion of the dark matter in the universe is likely to be baryonic.

As “dark matter”, baryonic dark matter is undetectable by its emitted radiation, but its presence can be inferred from gravitational effects on visible matter. This form of dark matter is composed of “baryons”, heavy subatomic particles such as protons and neutrons and combinations of these, including non-emitting ordinary atoms.

Baryonic dark matter may occur in non-luminous gas or in Massive Astrophysical Compact Halo Objects (MACHOs) – condensed objects such as black holes, neutron stars, white dwarfs, very faint stars, or non-luminous objects like planets), and brown dwarfs.

The total amount of baryonic dark matter can be inferred from models of Big Bang nucleosynthesis, and observations of the cosmic microwave background. Both indicate that the amount of baryonic dark matter is much smaller than the total amount of dark matter.

XENON on Wikipedia