Post doctoral researcher Alexios Liakos talks to senior researcher Manolis Xylouris, as they track a green comet named Comet C/2022 E3 (ZTF) from the telescope of the Kryoneri observatory, in Kryoneri, Greece, February 1, 2023. REUTERS/Alkis Konstantinidis 

Astronomer and senior researcher of the National Observatory of Athens Alkisti Bonanos speaks with her colleagues as they watch images of a green comet named Comet C/2022 E3 (ZTF), taken from the telescope of the Kryoneri observatory, in Kryoneri, Greece, February 1, 2023. REUTERS/Alkis Konstantinidis 

The moon is seen through the open canopy of the Kryoneri Observatory, before the telescope tracks a green comet named Comet C/2022 E3 (ZTF), in Kryoneri, Greece, February 1, 2023. REUTERS/Alkis Konstantinidis 

A night view of the Kryoneri observatory, in Kryoneri, Greece, February 1, 2023. REUTERS/Alkis Konstantinidis 

Astronomer and senior researcher at the National Observatory of Athens Alkisti Bonanos looks at an image of a green comet named Comet C/2022 E3 (ZTF), taken from the telescope of the Kryoneri observatory, in Kryoneri, Greece, February 1, 2023. REUTERS/Alkis Konstantinidis 

Astrophysicist and post doctoral researcher at the National observatory of Athens Sophia Derlopa, operates the telescope of the Kryoneri Observatory, before tracking a green comet named Comet C/2022 E3 (ZTF), in Kryoneri, Greece, February 1, 2023. REUTERS/Alkis Konstantinidis 

A view of a screen shows the tracking of a green comet named Comet C/2022 E3 (ZTF) from the telescope of the Kryoneri observatory, in Kryoneri, Greece, February 1, 2023. REUTERS/Alkis Konstantinidis 

An Apple store is seen from Taipei 101 observatory in Taipei, Taiwan, January 17, 2023. REUTERS/Ann Wang 

People visit Taipei 101 observatory in Taipei, Taiwan January 17, 2023. REUTERS/Ann Wang 

A night view of the city as seen from Taipei 101 observatory in Taipei, Taiwan, January 17, 2023. REUTERS/Ann Wang 

People visit Taipei 101 observatory in Taipei, Taiwan January 17, 2023. REUTERS/Ann Wang 

U.S. Vice President Kamala Harris welcomes Japanese Prime Minister Fumio Kishida for a working breakfast at the U.S. Naval Observatory, the vice president's residence, in Washington, U.S., January 13, 2023.  REUTERS/Kevin Lamarque 

U.S. Vice President Kamala Harris and Japanese Prime Minister Fumio Kishida shake hands ahead of a working breakfast at the U.S. Naval Observatory, the vice president's residence, in Washington, U.S., January 13, 2023.  REUTERS/Kevin Lamarque 

U.S. Vice President Kamala Harris welcomes Japanese Prime Minister Fumio Kishida for a working breakfast at the U.S. Naval Observatory, the vice president's residence, in Washington, U.S., January 13, 2023.  REUTERS/Kevin Lamarque 

Radhia Smine of the Tunisian Observatory of Water, works on a laptop during an interview with Reuters in Tunis, Tunisia, January 9, 2023. REUTERS/Jihed Abidellaoui 

People enjoy the last sunset of the year on New Year's Eve at the Seoul Sky Observatory in Seoul, South Korea, December 31, 2022. REUTERS/ Heo Ran 

People enjoy the last sunset of the year on New Year's Eve at the Seoul Sky Observatory in Seoul, South Korea, December 31, 2022. REUTERS/ Heo Ran 

A couple enjoy the last sunset of the year on New Year's Eve at the Seoul Sky Observatory in Seoul, South Korea, December 31, 2022. REUTERS/ Heo Ran 

People enjoy the last sunset of the year on New Year's Eve at the Seoul Sky Observatory in Seoul, South Korea, December 31, 2022. REUTERS/Heo Ran 

A couple takes a selfie with the setting sun on New Year's Eve at the Seoul Sky Observatory in Seoul, South Korea, December 31, 2022. REUTERS/ Heo Ran 

Couples enjoy the last sunset of the year on New Year's Eve at the Seoul Sky Observatory in Seoul, South Korea, December 31, 2022. REUTERS/Heo Ran 

A couple takes a selfie with the setting sun on New Year's Eve at the Seoul Sky Observatory in Seoul, South Korea, December 31, 2022. REUTERS/ Heo Ran 

People enjoy the last sunset of the year on New Year's Eve at the Seoul Sky Observatory in Seoul, South Korea, December 31, 2022. REUTERS/Heo Ran 

A woman poses for a photograph during sunset on New Year's Eve at the Seoul Sky Observatory in Seoul, South Korea, December 31, 2022. REUTERS/ Heo Ran 

Tapi Tapi ice cream shop owner, Zimbabwean Tapiwa Guzha, mixes dry ice into the ice cream ingredients at his shop in Observatory, in Cape Town, South Africa, December 21, 2022. REUTERS/Esa Alexander 

Tapi Tapi ice cream shop owner, Zimbabwean Tapiwa Guzha, mixes dry ice into the ice cream ingredients at his shop in Observatory, in Cape Town, South Africa, December 21, 2022. REUTERS/Esa Alexander 

A staff member scoops ice cream for customers inside the Tapi Tapi ice cream shop in Observatory, in Cape Town, South Africa, December 20, 2022. REUTERS/Esa Alexander 

Tapi Tapi ice cream shop owner, Zimbabwean Tapiwa Guzha, mixes the ice cream ingredients at his shop in Observatory, in Cape Town, South Africa, December 20, 2022. REUTERS/Esa Alexander 

A customer buys ice cream at the Tapi Tapi ice cream shop in Observatory, in Cape Town, South Africa, December 20, 2022. REUTERS/Esa Alexander 

A customer tastes ice cream before she buys some at the Tapi Tapi ice cream shop in Observatory, in Cape Town, South Africa, December 20, 2022. REUTERS/Esa Alexander 

Customers buy ice cream at the Tapi Tapi ice cream shop in Observatory, in Cape Town, South Africa, December 20, 2022. REUTERS/Esa Alexander 

Customers buy ice cream at the Tapi Tapi ice cream shop in Observatory, in Cape Town, South Africa, December 20, 2022. REUTERS/Esa Alexander 

Tapi Tapi ice cream shop owner, Zimbabwean Tapiwa Guzha, mixes the ice cream ingredients at his shop, in Observatory, in Cape Town, South Africa, December 20, 2022. REUTERS/Esa Alexander 

Customers walk after buying ice cream at the Tapi Tapi ice cream shop in Observatory, in Cape Town, South Africa, December 20, 2022. REUTERS/Esa Alexander 

Customers buy ice cream at the Tapi Tapi ice cream shop in Observatory, in Cape Town, South Africa, December 20, 2022. REUTERS/Esa Alexander 

Square Kilometre Array Observatory Director of Programmes and Deputy Director- General, Joseph McMullin walks past the Meerkat telescope array at the launch of the construction of Square Kilometre Array-Mid telescope outside the town of Carnarvon, with a similar ceremony taking place in SKA co-host Australia on the same day, in Northern Cape, South Africa, December 05, 2022. REUTERS/Esa Alexander 

Natalia Deligne, research geologist at USGS Hawaiian Volcano Observatory speaks to the media about the eruption of the Mauna Loa Volcano in Hawaii, U.S. December 4, 2022. REUTERS/Go Nakamura 

Natalia Deligne, research geologist at USGS Hawaiian Volcano Observatory speaks to the media about the eruption of the Mauna Loa Volcano in Hawaii, U.S. December 4, 2022. REUTERS/Go Nakamura 

Senior Communications Manager for the Hawaii Department of Land and Natural Resources Dan Dennison, and Ken Hon, scientist-in-charge of the Hawaiian Volcano Observatory (HVO), speak to media about the eruption of the Mauna Loa Volcano in Hawaii, U.S. November 30, 2022. REUTERS/Go Nakamura 

A cat walks past a destroyed observatory to the Orthodox Christian monastery The Holy Dormition Svyatogorsk Lavra beside the Siverskyi Donets river, as Russia's invasion of Ukraine continues, in the eastern Donbas region of Sviatohirs'k, Ukraine, October 31, 2022. REUTERS/Clodagh Kilcoyne 

A destroyed observatory to the Orthodox Christian monastery The Holy Dormition Svyatogorsk Lavra beside the Siverskyi Donets river is seen, as Russia's invasion of Ukraine continues, in the eastern Donbas region of Sviatohirs'k, Ukraine, October 31, 2022. REUTERS/Clodagh Kilcoyne 

A destroyed observatory to the Orthodox Christian monastery The Holy Dormition Svyatogorsk Lavra beside the Siverskyi Donets river is seen, as Russia's invasion of Ukraine continues, in the eastern Donbas region of Sviatohirs'k, Ukraine, October 31, 2022. REUTERS/Clodagh Kilcoyne 

A destroyed observatory to the Orthodox Christian monastery The Holy Dormition Svyatogorsk Lavra beside the Siverskyi Donets river is seen, as Russia's invasion of Ukraine continues, in the eastern Donbas region of Sviatohirs'k, Ukraine, October 31, 2022. REUTERS/Clodagh Kilcoyne 

A destroyed observatory to the Orthodox Christian monastery The Holy Dormition Svyatogorsk Lavra beside the Siverskyi Donets river is seen, as Russia's invasion of Ukraine continues, in the eastern Donbas region of Sviatohirs'k, Ukraine, October 31, 2022. REUTERS/Clodagh Kilcoyne 

A destroyed observatory to the Orthodox Christian monastery The Holy Dormition Svyatogorsk Lavra beside the Siverskyi Donets river is seen, as Russia's invasion of Ukraine continues, in the eastern Donbas region of Sviatohirs’k, Ukraine, October 31, 2022. REUTERS/Clodagh Kilcoyne 

Japan's Ryoii Watanabe Ryoji grimaces after completing the 44th Annual Empire State Building Run-Up to the 86th floor observatory of the Empire State Building in New York City, U.S., October 6, 2022. REUTERS/Shannon Stapleton 

So Wai Ching, from Malaysia, celebrates winning the 44th Annual Empire State Building Run-Up to the 86th floor observatory of the Empire State Building in New York City, U.S., October 6, 2022. REUTERS/Shannon Stapleton 

A runner competes in the 44th Annual Empire State Building Run-Up the 86 floors to the 86th floor observatory of the Empire State Building in New York City, U.S., October 6, 2022. REUTERS/Shannon Stapleton 

Runners compete in the 44th Annual Empire State Building Run-Up the 86 floors to the 86th floor observatory of the Empire State Building in New York City, U.S., October 6, 2022. REUTERS/Shannon Stapleton 

So Wai Ching, from Malaysia, is embraced by a fellow racer after winning the 44th Annual Empire State Building Run-Up to the 86th floor observatory of the Empire State Building in New York City, U.S., October 6, 2022. REUTERS/Shannon Stapleton 

So Wai Ching, from Malaysia, is embraced by a fellow racer after winning the 44th Annual Empire State Building Run-Up to the 86th floor observatory of the Empire State Building in New York City, U.S., October 6, 2022. REUTERS/Shannon Stapleton 

So Wai Ching, from Malaysia crosses the finish line after winning the 44th Annual Empire State Building Run-Up to the 86th floor observatory of the Empire State Building in New York City, U.S., October 6, 2022. REUTERS/Shannon Stapleton 

Runners compete in the 44th Annual Empire State Building Run-Up the 86 floors to the 86th floor observatory of the Empire State Building in New York City, U.S., October 6, 2022. REUTERS/Shannon Stapleton 

Runners compete in the 44th Annual Empire State Building Run-Up the 86 floors to the 86th floor observatory of the Empire State Building in New York City, U.S., October 6, 2022. REUTERS/Shannon Stapleton 

So Wai Ching, from Malaysia holds up the finish line after winning the 44th Annual Empire State Building Run-Up to the 86th floor observatory of the Empire State Building in New York City, U.S., October 6, 2022. REUTERS/Shannon Stapleton 

A screengrab shows migrants who were bused from Texas arrive at the Naval Observatory in Washington D.C., U.S., September 15, 2022. Marat Sadana/REUTERS TV via REUTERS 

A screengrab shows migrants who were bused from Texas arrive at the Naval Observatory in Washington D.C., U.S., September 15, 2022. Marat Sadana/REUTERS TV via REUTERS 

A screengrab shows migrants who were bused from Texas arrive at the Naval Observatory in Washington D.C., U.S., September 15, 2022. Marat Sadana/REUTERS TV via REUTERS 

A screengrab shows migrants who were bused from Texas arrive at the Naval Observatory in Washington D.C., U.S., September 15, 2022. Marat Sadana/REUTERS TV via REUTERS 

A screengrab shows migrants who were bused from Texas arrive at the Naval Observatory in Washington D.C., U.S., September 15, 2022. Marat Sadana/REUTERS TV via REUTERS