Small stellar systems like dwarf galaxies are thought to be the main building blocks of the Milky Way. However, it is unclear how many and what kind of stars in our galaxy originated from satellite dwarf galaxies.
Astronomy
Apr 30, 2019
1
283
How do galaxies form and evolve? And how do central supermassive black holes form in galaxies and influence their hosts? Those are two of the big questions that Tufts astronomers hope to answer when they start using a new, ...
Astronomy
Apr 23, 2019
3
59
The center of our galaxy is a frenzy of activity. A behemoth black hole—4 million times as massive as the sun—blasts out energy as it chows down on interstellar detritus while neighboring stars burst to life and subsequently ...
Astronomy
Mar 20, 2019
48
779
Researchers have detected a radio signal from abundant interstellar dust in MACS0416_Y1, a galaxy 13.2 billion light-years away in the constellation Eridanus. Standard models can't explain this much dust in a galaxy this ...
Astronomy
Mar 19, 2019
3
125
All massive galaxies are believed to host supermassive black holes (SMBH) at their centers that grow by accreting mass from their environment. The current picture also imagines that the black holes grow in size as their host ...
Astronomy
Mar 18, 2019
0
170
The latest data release from the Sloan Digital Sky Survey (SDSS) includes observations revealing the internal structure and composition of nearly 5,000 nearby galaxies observed during the first three years of a program called ...
Astronomy
Jan 29, 2019
4
580
A new study led by Yale University astronomers tells the story of a galaxy that ran out of gas.
Astronomy
Jan 24, 2019
0
239
The universe is about 13.8 billion years old, and its stars are arguably its most momentous handiwork. Astronomers studying the intricacies of star formation across cosmic time are trying to understand whether stars and the ...
Astronomy
Jan 18, 2019
29
243
Look at a galaxy, what do you see? Probably lots of stars. Nebulae too. And that's probably it. A whole bunch of stars and gas in a variety of colorful assortments; a delight to the eye. And buried among those stars, if you ...
Astronomy
Jan 11, 2019
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111
Galaxies come in a wide variety of shapes and sizes. Some of the most significant differences among galaxies, however, relate to where and how they form new stars. Compelling research to explain these differences has been ...
Astronomy
Jan 10, 2019
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232
