Accessibility links
Skip to main content
Skip to main Navigation
Skip to Search
About Learning English
Beginning Level
Intermediate Level
Advanced Level
US History
Video
Follow Us
Languages
Search
Search
Previous
Next
Breaking News
Quiz - NASA: Scientists Discover Oldest Black Hole Yet
November 08, 2023
Question 1 / 4
According to researchers, what theory did the discovery of the black hole support?
Only very distant black holes are massive
Quasars produce X-rays
Old black holes are growing
The early universe contained very large black holes
Submit Answer
Next Question
Quiz - NASA: Scientists Discover Oldest Black Hole Yet
Back to top
XS
SM
MD
LG
