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Is Cosmology in Crisis?
The Sky at Night - S2019 - E2
Ever since we discovered that distant galaxies are racing away from us, there has been a heated debate over just how fast the Universe is expanding. At the beginning of the 21st century, we thought we knew the answer. But now, two very different viewpoints have emerged. And they are dividing the scientific community. The Sky at Night meets leading astronomers and cosmologists on both sides of the debate. Which team has the right answer? Or could both teams be right? If so, we may need to rethink everything we think we know about the Universe.
The Sky at Night: Season 2019 - 11 Episode s
2019x1 - Beyond Pluto
January 13, 2019
On 1 January 2019, Nasa's New Horizons probe notched up another historic first: the first ever Kuiper belt fly-by. Its target was 2014 MU69, a chunk of ice and rock about four billion miles (approximately 6.4 billion kilometres) from Earth, dubbed Ultima Thule, a Latin phrase meaning a distant, unknown region. It is the most distant fly-by in history, and it is believed the data New Horizons gathers will shed new light on the solar system's early days. Chris Lintott reports from the John Hopkins Applied Physics Laboratory in Maryland to bring the latest news and pictures from this extraordinary mission.
2019x2 - Is Cosmology in Crisis?
February 10, 2019
Ever since we discovered that distant galaxies are racing away from us, there has been a heated debate over just how fast the Universe is expanding. At the beginning of the 21st century, we thought we knew the answer. But now, two very different viewpoints have emerged. And they are dividing the scientific community. The Sky at Night meets leading astronomers and cosmologists on both sides of the debate. Which team has the right answer? Or could both teams be right? If so, we may need to rethink everything we think we know about the Universe.
2019x3 - Marsquake!
April 14, 2019
Marsquake! This month's episode follows Insight, NASA’s latest mission to the Red Planet, as it goes in search of the secrets buried deep below Mars’s surface. By listening for tremors caused by Marsquakes and meteor strikes, scientists hope to reveal how the planet was formed, why its fate was so different from the Earth and whether the planet is dead or alive. The programme also says a heartfelt goodbye to Opportunity, the rover that explored the surface of Mars for more than 14 years until it was engulfed by a dust storm last year.
2019x4 - Supermassive Black Hole
May 12, 2019
The team reveals how the first picture of a supermassive black hole was captured. The photograph of the hole at the heart of the M87 galaxy was released in April.
2019x5 - Return to the Moon
June 9, 2019
In the first of two programmes to commemorate the 50th anniversary of the Apollo Moon landings, the Sky at Night team take a look at the latest plans to return to the Moon. Recently, China, Israel and India have all sent major missions to the Moon. The Europeans and Americans are planning to build a space station in permanent orbit around the Moon. And NASA has just announced that they plan to land astronauts on the Moon’s surface within five years. It all suggests that we are on the verge of a new golden age in lunar exploration.
2019x6 - The Moon, the Mission and the BBC
July 14, 2019
To celebrate the 50th anniversary of the Apollo mission to put a man on the moon, The Sky at Night looks back through the archives to tell the story of how the BBC reported the moonshot, with some very special guests. Scientist John Zarneki discusses the huge scientific and engineering challenge. The first British astronaut, Helen Sharman, reveals just how accurate the predictions and preparations for life in space were. And writer and broadcaster James Burke - who reported the whole amazing story at the time - explains why Nasa loved the BBC and how he gained access to the command module for an episode of Tomorrow’s World.
2019x7 - Space Mission Special
August 11, 2019
The programme goes behind the scenes as the European Space Agency selects its next mission, which will be launched in 2028, meeting British teams vying to have their ideas selected, including a revolutionary mission to a comet.
2019x8 - Alien Worlds
September 8, 2019
Astronomers have found more than 4,000 planets circling stars other than our own. What do we know about these alien worlds and how have we managed to detect them?
2019x9 - Question Time
October 13, 2019
A one-hour special in which The Sky at Night team face a live studio audience to answer their questions about the mysteries and wonders of the universe.
2019x10 - Rosetta: The Comet's Tale
November 10, 2019
The Rosetta mission to comet 67P was the first time a spacecraft landed on a comet's surface. What has this icy body taught us about the dawn of the solar system and the origins of life on earth?
2019x11 - Review of the Year
December 8, 2019
Looking back on the major stories of the year - from the New Horizons mission to the most distant world we have ever visited to the release of the first-ever picture of a black hole. The team relive the highlights and uncover the latest developments.
The Sky at Night: All seasons
S0: Specials
6 Episode s
S1: 1957
59 Episode s
S2: 1958
1 Episode
S3: 1959
0 Episode
S4: 1960
0 Episode
S5: 1961
0 Episode
S6: 1962
0 Episode
S7: 1963
1 Episode
S8: 1964
0 Episode
S9: 1965
0 Episode
S10: 1966
0 Episode
S11: 1967
0 Episode
S12: 1968
0 Episode
S13: 1969
0 Episode
S14: 1970
0 Episode
S15: 1971
0 Episode
S16: 1972
0 Episode
S17: 1973
0 Episode
S18: 1974
0 Episode
S19: 1975
1 Episode
S1982: Season 1982
1 Episode
S2002: Season 2002
12 Episode s
S2003: Season 2003
12 Episode s
S2004: Season 2004
12 Episode s
S2005: Season 2005
13 Episode s
S2006: Season 2006
14 Episode s
S2007: Season 2007
14 Episode s
S2008: Season 2008
12 Episode s
S2009: Season 2009
16 Episode s
S2010: Season 2010
12 Episode s
S2011: Season 2011
12 Episode s
S2012: Season 2012
12 Episode s
S2013: Season 2013
12 Episode s
S2014: Season 2014
11 Episode s
S2015: Season 2015
11 Episode s
S2016: Season 2016
10 Episode s
S2017: Season 2017
10 Episode s
S2018: Season 2018
11 Episode s
S2019: Season 2019
11 Episode s
S2020: Season 2020
10 Episode s
S2021: Season 2021
10 Episode s
S2022: Season 2022
9 Episode s
S2023: Season 2023
6 Episode s
S2024: Season 2024
6 Episode s