Science & Tech · Space · 11 hrs ago

Hubble reveals a spiral galaxy with central stars and gas rotating sideways

Hubble reveals a spiral galaxy with central stars and gas rotating sideways

NGC 4698 is a spiral galaxy about 55 million light-years from Earth, in the constellation Virgo.

A new image from the Hubble Space Telescope shows its dusty disk and spiral arms, which are most visible farther from the center.

Its central bulge extends at roughly a right angle to the disk, an unusual arrangement found in only a small number of spiral galaxies.

Measurements show that stars and gas near the center rotate in a plane perpendicular to the main disk.

Astronomers think NGC 4698 may have captured gas moving in a different direction, which could have formed stars that kept that unusual motion.

A short tail of hydrogen extending from the galaxy may also point to a past encounter, though its origin is not confirmed.

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