Millions of people across Indonesia and the Pacific have experienced a total solar eclipse, with parts of the region falling into complete darkness.
The eclipse began at 06:19 local time (23:19 GMT Tuesday) as the Moon started to pass directly in front of the Sun.
As the eclipse reached totality, the Moon blocked all direct sunlight, turning day into night.
In Indonesia's Belitung province, a crowd gathered on a beach and witnesses spoke of a "magical" experience.
The eclipse was total in Indonesia and the Central Pacific, while parts of Australia and Asia experienced a partial one.
Astronomers reiterated advice not to look directly at the Sun with the naked eye, or through a telescope. Experts recommended using either a professional solar filter in front of a telescope or camera, or special eclipse-viewing glasses.
The total eclipse began at 00:15 GMT, with the moment of maximum shadow at 01:59 GMT. The celestial event will end at sunset, local time, north of Hawaii (04:34 GMT).
People along a 150km-wide strip running through Sumatra, Borneo and Sulawesi - the path of eclipse totality - experienced the eclipse for about four hours on Wednesday morning.
In Maba, Maluku Islands, there was darkness for about three minutes - the longest time in Indonesia. Other areas experienced blackout or darkness for about two minutes.
Skywatchers in southern China, south-east Asia, Australia, Hawaii and Alaska experienced a partial eclipse when the Moon's penumbra - the outer region of the shadow - catches them. This looks as if a chunk of the Sun has been blacked out.
For eclipse watchers outside these regions, a number of astronomy institutes hosted live streams of the event.
Scientists at Nasa said they planned to use the event to study solar physics.
From Indonesia, they will use an instrument called a polarization camera to capture 59 exposures of the Sun in just over three minutes, collecting data on the innermost parts of the sun's volatile, superheated atmosphere.
This region can only be observed during total solar eclipses when the Sun's bright face is completely blocked by the Moon.
The lower part of the sun's atmosphere, the corona, is thought to hold the keys to several solar mysteries, including the birth of explosive clouds of solar material called coronal mass ejections and the mystery of why the corona is actually hotter than the surface.
"The Sun's atmosphere is where the interesting physics is," said Nelson Reginald, from Nasa's Goddard Space Flight Center in Maryland.
The most recent total solar eclipse took place in the far northern hemisphere on 20 March 2015.