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About the word in bold “drifts” (l. 03), analyze the...
NASA engineers discover why Voyager 1 is sending a stream of gibberish from outside our solar system
By Ben Turner
01 For the past five months, the Voyager 1 spacecraft has been sending a steady stream of
02 unreadable gibberish back to Earth. Now, NASA engineers finally know why. The 46-year-old
03 spacecraft sends regular radio signals as it drifts further from our solar system. But in November
04 2023, the signals suddenly became garbled, meaning scientists were unable to read any of its
05 data, and they were left mystified about the fault's origins. In March, NASA engineers sent a
06 command prompt, or “poke”, to the craft to get a readout from its flight data subsystem (FDS)
07 — which packages Voyager 1's science and engineering data before beaming it back to Earth.
08 After decoding the spacecraft's response, the engineers have found the source of the problem:
09 the FDS's memory has been corrupted. “
10 The team suspects that a single chip responsible for storing part of the affected portion of
11 the FDS memory isn't working”, NASA said in a blog post Wednesday (March 13). “Engineers
12 can't determine with certainty what caused the issue. Two possibilities are that the chip could
13 have been hit by an energetic particle from space or that it simply may have worn out after 46
14 years”. Although it may take several months, the engineers say they can find a workaround to
15 run the FDS without the fried chip — restoring the spacecraft's messaging output and enabling
16 it to continue to send readable information from outside our solar system.
17 Launched in 1977, Voyager 1 zipped past Saturn and Jupiter in 1979 and 1980 before flying
18 out into interstellar space in 2012. It is now recording the conditions outside of the sun's
19 protective magnetic field, or heliosphere, which blankets our solar system. Voyager 1 is currently
20 more than 15 billion miles (24 billion kilometers) from Earth, and it takes 22.5 hours for any
21 radio signal to travel from the craft to our planet.
(Available at: www.livescience.com/space/space-exploration/nasa-engineers-discover-why-voyager-1-is-sending-a-stream-of-gibberish-from-outside-our-solar-system – text especially adapted for this test).
About the word in bold “drifts” (l. 03), analyze the statements below:
I. The verb “drift” is written “drifts” to agree with “signals”, which is a plural noun.
II. Its past participle form is “drifted”.
III. It acts as an adverb to “further”.
Which ones are correct?
A
Only I.
B
Only II.
C
Only III.
D
Only I and II.
E
Only II and III.