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Aspidistra elatior, the cast-iron-plant [3] or bar-room plant, also known in Japanese as haran or baran (葉蘭) [4] is a species of flowering plant in the family Asparagaceae, native to Japan and Taiwan.
Aspidistra is a genus that was largely ignored by field botanists until the 1980s onwards, and there has been a rapid rise in the number of recognised species since then. [5] Some 8 to 10 species were known in the late 1970s; 30 new species were described from China in the 1980s.
The Milky Way [c] is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars in other arms of the galaxy, which are so far away that they cannot be individually distinguished by the naked eye.
The nature of the Milky Way's bar, which extends across the Galactic Center, is also actively debated, with estimates for its half-length and orientation spanning between 1–5 kpc (short or a long bar) and 10–50°. [23] [25] [27] Certain authors advocate that the Milky Way features two distinct bars, one nestled within the other. [28]
The Milky Way has several smaller galaxies gravitationally bound to it, as part of the Milky Way subgroup, which is part of the local galaxy cluster, the Local Group. [ 1 ] There are 61 small galaxies confirmed to be within 420 kiloparsecs (1.4 million light-years ) of the Milky Way, [ 2 ] but not all of them are necessarily in orbit, and some ...
But at 25,000 light-years away, the highly energetic and variable activity of the Milky Way’s central black hole isn’t a concern, Morris said. However, the Webb telescope observations allow ...
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The Scutum–Centaurus Arm, also known as Scutum-Crux arm, is a long, diffuse curving streamer of stars, gas and dust that spirals outward from the proximate end of the Milky Way's central bar. The Milky Way has been posited since the 1950s to have four spiral arms; numerous studies contest or nuance this number. [1]