Ever wonder why the sun seems to be dimming? According to a new conspiracy theory, it is because aliens are sucking out all the sun's energy.

According to UFO enthusiasts, official photos from NASA seem to confirm that alien spacecrafts are circling the sun to harvest solar energy. As a result, the sun is losing its brightness.

Mirror UK reported that the NASA images, which was taken from the Solar and Heliospheric Observatory (SOHO), seem to show a white spot which is joined towards the sun's surface with a "connected line." Youtube user Streetcap1 posted a video titled "Is this a massive UFO feeding off sun energy?" The video featured images of the alleged incident.

In addition to many commenters sharing their thoughts about the photo, popular UFO expert Scott C. Waring of UFO Sightings Daily had also commented.

"This is definitely a UFO shot out of the sun yesterday. It may have been using the sun's energy to fuel itself or to recharge in some way, but it's leaving at high speeds," he wrote. "Notice that the UFO is a glowing white, but the sun's plasma is a yellow. This tells us the craft is made from a different material than the sun's surface."

Apart from commenting, Waring also posted his own version of the NASA image featuring the alleged alien aircrafts.

Meanwhile, Headlines and Global News reported that the strange objects around the sun might have been just some kind of coronal mass ejections (CME) from the sun which Space Weather Live defines as a giant cloud of solar plasma drenched with magnetic field lines that are blown away from the Sun during strong, long-duration solar flares and filament eruptions.

Previous researches have claimed that the logical explanation for the less sunlight that the amount of solar energy reaching the Earth's surface has been gradually falling because of air pollution. As BBC explains, the visible air pollution caused by coal burning, car fuel, etc. reflect sunlight back into space, preventing it reaching the surface.