This article is from the Prophecies of Nostradamus FAQ, by firstname.lastname@example.org.
I p262 (cIV-28)
During the time of troubles, when the sun is between the earth and
Venus, i.e. from the point of view of Earth Venus is hidden by the
sun, the Watchers (aliens) will be exposed through the powers of
observation and communication. Scientists involved with
radiotelescopy and related disciplines will observe an anomaly, and
as they focus on it they come to the realization that it is a strong
indication of a real UFO. The readings are caused by an instrument
sent by the Watchers to observe mankind.
The scientists and the populace will learn more about the probe and
the Watchers. But internal dissension will be created by
fundamentalists because the existence of aliens is not consistent
with their worldview. This will take place in approximately 1997 or
1998. The Watchers are returning to mankind at this time because they
are trying to help him through gentle prodding and increasing
spiritual love. They have always kept an eye on us and have observed
our growth and development. They're looking forward to the day we can
join the universal community and help with their project in a way
that's unique to us.