Explanation: In this dramatic picture, spiral galaxy NGC 5091 appears in the foreground. Tilted nearly edge-on, the dust lanes between its spiral arms are clearly visible. The large elliptical galaxy NGC 5090 lies just beyond it - both are about 100 million light years distant in the southern constellation Centaurus. Can you see through the spiral galaxy? The detailed answer to this question has important implications for determining the nature of dark matter and the measurement of star formation rates. Comparing the overlapping and non-overlapping parts of this and other pairs of galaxies offers a neat way to find the answer.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: Elliptical Galaxy - ellipticheskaya galaktika - spiral'naya galaktika - zvezdoobrazovanie - temnoe veshestvo Publikacii so slovami: Elliptical Galaxy - ellipticheskaya galaktika - spiral'naya galaktika - zvezdoobrazovanie - temnoe veshestvo
Sm. takzhe: IC 348 i Barnard 3 Spiral'naya galaktika s peremychkoi NGC 1365 ot teleskopa "Dzheims Vebb" Spiral'naya galaktika NGC 6744 M16: stolpy sozidaniya M106: spiral'naya galaktika so strannym yadrom NGC 247 s druz'yami Licom k NGC 6946 Vse publikacii na tu zhe temu >>