Engineer Volkmar Dohmen stands in front of a giant bank of xenon short-arc lamps at the DLR German national aeronautics and space research center in Germany. When switched on, what is being called the world’s largest artificial sun creates combined intensity that's 10,000x stronger than sun's light on Earth's surface and produces temperatures of around 2,982° Celsius. The photo was taken on 3/21/17 (AP)

Engineer Volkmar Dohmen stands in front of a giant bank of xenon short-arc lamps at the DLR German national aeronautics and space research center in Germany. When switched on, what is being called the world’s largest artificial sun creates combined intensity that’s 10,000x stronger than sun’s light on Earth’s surface and produces temperatures of around 2,982° Celsius. The photo was taken on 3/21/17 (AP)

Taken on 3/9/17, here’s a photo of a telescope at the Oukaimeden Observatory, located in the High Atlas Mountains south of Marrakech, Morocco. Using a robotic telescope this observatory was participated in the recent discovery of seven Earth-size planets orbiting a nearby star. Scientists say that some of exoplanets could support life. (AP)

Taken on 3/9/17, here’s a photo of a telescope at the Oukaimeden Observatory, located in the High Atlas Mountains south of Marrakech, Morocco. Using a robotic telescope this observatory participated in the recent discovery of seven Earth-size planets orbiting a nearby star. Scientists say that some of the exoplanets could support life. (AP)

This image, released by NASA on 3/30/17, shows the Was 49 system, a large disk galaxy, merging with a much smaller "dwarf" galaxy Was 49b. The image was compiled using observations from the Lowell Observatory’s Discovery Channel Telescope in Happy Jack, Arizona. The same color filters used by the Sloan Digital Sky Survey was used to help create the image. (DCT/NRL)

This image, released by NASA on 3/30/17, shows the Was 49 system, a large disk galaxy, merging with a much smaller “dwarf” galaxy, Was 49b. The image was compiled using observations from the Lowell Observatory’s Discovery Channel Telescope in Happy Jack, Arizona. The same color filters used by the Sloan Digital Sky Survey were used to help create the image. (DCT/NRL)

In a photo taken 3/26/17, Aboriginal elder and Goolarabooloo Law Boss Richard Hunter lies alongside a 1.75 meter footprint of a sauropod dinosaur track. Said to be the largest dinosaur track that had been found so far, it was discovered along with the footprints of 21 other dinosaur species on the coast of Northwestern Australia. (Damian Kelly-University of Queensland via Reuters)

In a photo taken 3/26/17, Aboriginal elder and Goolarabooloo Law Boss Richard Hunter lies alongside a 1.75 meter footprint of a sauropod dinosaur track. Said to be the largest dinosaur track  found so far, it was discovered along with the footprints of 21 other dinosaur species on the coast of Northwestern Australia. (Damian Kelly-University of Queensland via Reuters)

The Pressurized Mating Adapter-3 (PMA-3) is in the grip of the Canadarm2 robotic arm during its relocation and attachment to the International Space Station’s Harmony module on 3/26/17. The relocation readies the PMA-3 for the future installation of the new International Docking Adapter-3 (IDA-3) which will accommodate commercial crew vehicle dockings and provide the pressurized interface between the station and the adapter. (NASA)

The Pressurized Mating Adapter-3 (PMA-3) is in the grip of the Canadarm2 robotic arm during its relocation and attachment to the International Space Station’s Harmony module on 3/26/17. The relocation readies the PMA-3 for the future installation of the new International Docking Adapter-3 (IDA-3) which will accommodate commercial crew vehicle dockings and provide the pressurized interface between the station and the adapter. (NASA)

Here’s a shot of the Northern Lights, or aurora borealis as seen over the skies of Bilfrost, Western Iceland on 3/1/17. The auroras are created as a result of collisions between particles in the Earth's atmosphere and charged particles released by the sun and carried by the solar wind. (AP)

Here’s a shot of the Northern Lights, or aurora borealis, as seen over the skies of Bilfrost, Western Iceland on 3/1/17. The auroras are created as a result of collisions between particles in the Earth’s atmosphere and charged particles released by the sun and carried by the solar wind. (AP)

Two of the raised treads on the left middle wheel of NASA's Curiosity Mars rover broke during the first quarter of 2017. You can especially see one that’s partially detached at the top of the wheel. The photo was taken 3/19/17 with the Mars Hand Lens Imager (MAHLI) camera that’s attached to on the rover's arm. (NASA/JPL-Caltech/MSSS)

Two of the raised treads on the left middle wheel of NASA’s Curiosity Mars rover broke during the first quarter of 2017. You can especially see one that’s partially detached at the top of the wheel. The photo was taken 3/19/17 with the Mars Hand Lens Imager (MAHLI) camera that’s attached to on the rover’s arm. (NASA/JPL-Caltech/MSSS)

This is a photo of a wave colored with dark green algae washes on the beach of Bandar al-Jissah, Oman. All across Earth, algae blooms such as this have wrecked local ecosystems. According to a U.N. science agency the algae’s toxins have permeated entire marine food chains and have, in rare cases, killed people, according to a U.N. science agency. (AP)

This is a photo of a wave colored with dark green algae crashing on the beach of Bandar al-Jissah, Oman. All across Earth, algae blooms such as this have wrecked local ecosystems. According to a U.N. science agency, the algae’s toxins have permeated entire marine food chains and have, in rare cases, killed people. (AP)

This image, taken on 3/27/17, by the JunoCam imager on NASA's Juno spacecraft, focuses on a swirling storm just south of one of the white oval storms on Jupiter. NASA says at the time the image was taken, the spacecraft was about 20,000 kilometers from the planet. (NASA/JPL-Caltech/SwRI/MSSS/Jason Major)

This image, taken on 3/27/17 by the JunoCam imager on NASA’s Juno spacecraft, focuses on a swirling storm just south of one of the white oval storms on Jupiter. NASA says at the time the image was taken, the spacecraft was about 20,000 kilometers from the planet. (NASA/JPL-Caltech/SwRI/MSSS/Jason Major)

French President Francois Hollande stands beside Leenby the robot. Photo was taken on 3/21/17 at the launch of French strategy in artificial intelligence at the Cite des Sciences in Paris. The museum is the largest science museum in Europe. (AP)

French President Francois Hollande stands beside Leenby the robot. The photo was taken on 3/21/17 at  the Cite des Sciences in Paris. The museum is the largest science museum in Europe. (AP)