© Pixabay / Thomas Breher
NASA is currently tracking three near-Earth objects (NEOs) due to fly past the Earth on November 20. Worryingly, two of the three were only spotted this past weekend, once again raising tensions over planetary defense.
The first of Wednesday’s cosmic flybys and the largest, measuring 157.5ft to 360.8ft (48 to 110 meters) across, will be asteroid 2019 UK6, which will speed past at approximately 6.20am GMT (1.20am EDT). It is 2019 UK6 we had most prior warning about, as it was first observed on October 24.
NEO 2019 UK6 is an Amor asteroid, which that goes around the Sun and the Earth, occasionally, but very rarely, crossing Earth’s path. Apollo asteroids, on the other hand, intersect with Earth’s orbit as the planet travels around the Sun.
The second of the Wednesday’s flybys will be 2019 WF, first spotted by NASA’s asteroid hunters just two days ago on November 17. Estimated to be about 24 meters wide, it will make its closest Earth approach at roughly twice the distance to the moon, so no danger of an extinction level event there anyway.
Last up will be 2019 WE, also spotted at the last second on November 17. This asteroid will sail past our planet at a distance of about 1.3 million kilometers away.
According to NASA’s Center for Near-Earth Object Studies (CNEOS), all three will have what are dubbed “near-Earth approaches,” but thankfully none are believed to pose any threat.
Courtesy of rt.com
Illustration: © urikyo33 from Pixabay
The seemingly never-ending stream of Earth-bound space rocks continues, as an Apollo-class asteroid measuring between 918ft and 2,034ft in diameter (280m-620m) is due to skim past our planet on November 21.
Affectionately dubbed ‘481394 (2006 SF6),’ the asteroid is traveling at a speed of roughly 17,780mph (27,360kph) and will make what NASA dubs a ‘close approach’ shortly after midnight (GMT) in mid-November at a distance of 2.6 million miles (4.2 million kilometers) away, or approximately eleven times as far away as the Moon.
The Apollo-class space rock is estimated to measure up to twice the size of the Eiffel Tower (or half the size of Ben Nevis for Brexiteers).
While the risk of impact is low, there is a small chance the Yarkovsky effect, in which sunlight can steer asteroids off their current trajectory, may send the asteroid even closer.
Apollo asteroids are Earth-crossing asteroids initially discovered by German astronomer Karl Reinmuth in the 1930s that constitute a little over 10,000 of NASA’s 19,000 known ‘near-Earth objects’ (NEOs), which orbit the Sun within 18,600,000 miles of our planet.
Courtesy of rt.com
Earth is soon set for another close shave with a hurtling space rock as an 111-foot asteroid is poised to skim past our planet on its closest approach for 115 years.
First spotted by astronomers only earlier this week, the asteroid dubbed 2019 TA7 is set to fly by Earth at a speed of over 22,500 miles per hour at 6:53pm ET on Monday, data from NASA’s Jet Propulsion Laboratory (JPL) reveals.
The new celestial visitor is estimated to measure up to 111 feet in diameter and is among a group of recently discovered asteroids that have been traveling close to Earth in recent days.
The flying rock orbits the Sun once every 240 days and passes by Earth about once a year. However, Monday’s approach will be our closest encounter with it in 115 years when it passes by at a distance of about 930,000 miles, more than 50 times closer to Earth than our nearest neighbor, Mercury.
Experts have repeatedly warned that Earth has no defense against an asteroid smashing into its surface. In fact the United Nations created World Asteroid Day in a bid to raise awareness about the possibility.
The UN is particularly worried about undetected asteroids, similar to 2019 TA7, as a major concern with hazardous space objects is that we are not good at detecting them and some of the most dangerous ones have caught us by surprise.
Courtesy of rt.com
© Pixabay / Marcelo Celo
A “potentially hazardous” asteroid that’s slightly larger than the Great Pyramid of Giza is set to hurtle past Earth this month at a whopping speed of 18 kilometers per second.
The enormous asteroid, dubbed 2019 OU1, measures to 160 meters (524 feet) in diameter, the equivalent to the Washington Monument, or 20 meters bigger than Egypt’s most famous pyramid.
The Apollo-class celestial rock is set to whiz past Earth on August 28 at a phenomenal 18km per second. According to NASA’s Center for Near-Earth Object Studies (CNEOS) the asteroid will come 40 times closer to Earth than Venus, our nearest neighbor, when it passes at a distance of about one million kilometers.
NASA rates any cosmic projectile with an approach distance of less than approximately 7.5 million kilometers (0.05 astronomical units) and measuring over 460 feet in diameter as “potentially hazardous.”
August has already been quite the month for asteroids. Another whopper space rock, which was larger than the Empire State Building, flew past Earth at about 10,400 mph in the early hours of Saturday morning.
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The asteroid will come 10 times closer to Earth than our nearest neighbor. © Pixabay
An asteroid larger than the Empire State Building (1,454 feet), and known as 2006 QQ23, will scream past the Earth at roughly 10,400 mph in the early hours of Saturday morning.
First spotted in 2006, hence the name, the 1,870ft-diameter juggernaut will make its closest approach to Earth on Saturday at 3:23 am EDT, according to NASA’s Center for Near-Earth Object Studies (CNEOS).
The space rock will come 10 times closer to Earth than Venus, our nearest neighbor, when it passes by at a distance of 0.049 astronomical units (4.6 million miles) while traveling at speeds of around 10,400 mph.
Any cosmic projectile with a minimum approach distance of less than 0.05 astronomical units and measuring over 460 feet in diameter is considered by NASA to be “potentially hazardous.”
The vast majority of small space objects that enter our atmosphere measure less than 30 feet in diameter and burn up on entry, but 2006 QQ23 is far larger than that.
We are currently aware of some 20,000 such Near Earth Objects (NEOs) and are discovering new ones at a rate of roughly 30 per week. Of these, we are currently aware of about 900 NEOs measuring more than 3,280 feet in diameter.
About six space objects around the size of Asteroid 2006 QQ23 pass by our planet each year, but thankfully all pose a statistically insignificant risk to life here on Earth.
Courtesy of rt.com
1) Geologists know climate change unrelated to atmospheric CO2 occurred throughout Earth’s 4.5-billion-year history. Yet the IPCC (United Nations Intergovernmental Panel on Climate Change) has no geologists among the hundreds of appointed authors of its Fifth Assessment Report of 2014 and its Sixth Report due in 2022 (see my Technical Note 2019-10). Thus IPCC incredibly lacks both geological input and long-term perspective.
2) IPCC’s very existence relies on public belief in manmade or ‘anthropogenic’ global warming (AGW) by CO2 emissions. Moreover its appointed authors, mostly government and university researchers, are nearly all biased by strong vested interests in AGW, i.e. reputations (publications, lectures) & continuance of salaries & research grants. Similarly, major universities have abandoned their scientiﬁc impartiality & integrity by hosting research institutes mandated to conﬁrm & act on AGW, e.g. Grantham Institute (Imperial College), Tyndall Centre.
3) The often-repeated ‘97% consensus among scientists that global warming is man’s fault’ (CO2 emissions) is untrue. It refers in fact to surveys of just a relatively small group of ‘climate scientists’ (a fairly new type of scientist, with strong incentives for bias; see Bullets 2 & 15), moreover only those who are ‘actively publishing’.
4) ‘Climate change denier’ & ‘global warming denier’ are despicable & dishonest terms for ‘AGW doubters’. No educated person disputes global warming, as thermometers measured 1°C rise from 1850 to 2016 (with pauses).
5) The ‘Greenhouse Hypothesis’, on which IPCC’s belief in AGW is based, is that atmospheric gases trap heat. But this old (19th century) notion is merely an idea, not a hypothesis, because it is untestable, impossible to prove in a laboratory as no experimental container can imitate Earth’s uncontained, well-mixed atmosphere.
6) IPCC computer models are so full of assumptions as to be extremely unreliable, e.g. forecast warming for 1995 to 2015 turned out to be 2-3 times too high ! A likely reason is that the greenhouse idea is nonsense, as explained in recent publications by several scientists. See Bullet 19 for an equally drastic failure of IPCC models. See also https://www.wnd.com/2017/07/study-blows-greenhouse-theory-out-of-the-water/https://principia-scientiﬁc.org/r-i-p-greenhouse-gas-theory-1980-2018/
7) For about 75% of the last 550 million years, CO2 was 2 to 15 times higher than now. Evolution ﬂourished, CO2 enabling plant photosynthesis, the basis of all life. Extinction events due to overheating by CO2 are unknown. !!
8) Through the last 12,000 years (our current Holocene interglacial period), CO2 was a mere 250 to 290 ppm (parts per million), near plant-starvation level, until about 1850 when industrial CO2 emissions began, making CO2 climb steeply. Nevertheless CO2 today it is still only 412ppm, i.e. under half of one-tenth of 1% of our atmosphere
9) Until man began adding CO2 about 1850, warming (determined from ‘proxies’ like tree rings) since the 1600AD Little Ice Age peak was accompanied by slowly rising CO2 (measured in ice cores). A simple explanation is CO2 release by ocean water, whose CO2-holding capacity decreases upon warming.
10) Supporting this sign that CO2 is a consequence, not cause, of global warming, a published study of 1980-2011 measurements showed that changes in warming rate precede changes in CO2’s growth rate, by about a year.
11) Since the 1850 start of man’s additions, CO2’s rise has generally accelerated, without reversals. In stark contrast, the post-1850 to present-day continuance of warming out of the Little Ice Age was interrupted by frequent small coolings of 1-3 years (some relatable to ‘volcanic winters’), plus two 30-year coolings (1878 to 1910, 1944 to 1976), and the famous 1998 to 2013 ‘global-warming pause’ or ‘hiatus’ (Wiki).
12) This unsteady modern warming instead resembles the unsteady rise of the sun’s magnetic output from 1901 toward a rare solar ‘Grand Maximum’ peaking in 1991, the ﬁrst in 1700 years !
13) Modern warming reached a peak in February 2016. Since then, Earth has cooled for 3 years (now April 2019).
14) The ‘Svensmark Theory’ says increased solar magnetic ﬂux warms Earth by deﬂecting cosmic rays, thus reducing cloudiness, allowing more of the sun’s warmth to heat the land and ocean instead of being reﬂected. In support, a NASA study of satellite data spanning 32 years (1979-2011) showed decreasing cloud cover.
15) Vociferous IPCC-involved climate scientist Dr Stefan Rahmstorf (Wiki) of the German government’s Potsdam Institute for Climate Impact Research, recipient of a US$1 million personal research grant from a private foundation, wrongly said in his 2008 article ‘Anthropogenic Climate Change’: “there is no viable alternative … [to CO2 as driver of modern warming from 1940 to 2005 because] … different authors agree that solar activity did not signiﬁcantly increase” during that period. Yet nine years earlier, in 1999, famous physicist Dr Michael Lockwood (Wiki; FRS) wrote, in ‘A Doubling of the Sun’s Coronal Magnetic Field During the Past 100 Years’, published in prestigious Nature journal: “the total magnetic ﬂux leaving the Sun has risen by a factor of 1.4 since 1964” and 2.3 since 1901 !! See for yourselves the striking overall 1964-91 climb in solar-magnetic output, recorded by the strong overall fall in detected neutrons (proportional to cosmic rays), in graph 3 here … https://cosmicrays.oulu.ﬁ
16) Lockwood showed averaged solar magnetic ﬂux increased 230% from 1901 to 1995, i.e. more than doubled ! The ﬁnal peak value was 5 times the starting minimum value ! Bullets 17 & 18 likewise back Svensmark’s theory…
17) … after the previous solar Grand Maximum (4th century, long before industrial CO2), in the next decades Earth warmed to near or above today’s temperature. Then ‘sawtooth’ cooling proceeded, through the Dark Ages and ‘Medieval Warm Period’, into the Little Ice Age, paralleling a 1,000-year unsteady solar decline; and …
18) … before that, between 8000 and 2000BC, Earth was occasionally warmer than today for hundreds if not thousands of years, as shown by tree rings, shrunken glaciers, etc.. Then unsteady cooling from 3000BC into the Little Ice Age paralleled unsteady solar decline following the Holocene’s ‘super-Grand’ Maximum near 3000BC.
19) This 4,500-year cooling contradicts IPCC computer models that instead predict warming by the simultaneous (slow) rise in CO2. This is the ‘The Holocene Temperature Conundrum’ of Liu et al. (2014). See also Bullet 6.
20) Embarrassingly for AGW promoters, the 8000-2000BC warm interval (Bullet 18) was already, ironically, named the ‘Holocene Climatic Optimum’, before today’s CO2/AGW hysteria began. The warmth probably beneﬁtted human social development. Indeed, it was cold episodes, bringing drought and famine, that ended civilisations.
21) Cross-correlating post-1880 graphs of solar-magnetic ﬂux versus Earth’s temperature suggests a 25-year time-lag, such that the 2016 peak temperature corresponds to the 1991 solar peak. The lag is probably due to the ocean’s high thermal inertia due to its enormous volume and high heat capacity, hence slow response to warming.
22) IPCC, ignoring the possibility of such a time-lag, claims that simultaneous global warming (until 2016) and solar weakening (since 1991) must mean that warming is driven by CO2 !
23) The last interglacial period about 100,000 years ago was warmer than our Holocene interglacial. Humans and polar bears survived ! CO2 was then about 275ppm, i.e. lower than now (Bullet 8).
24) The simultaneous rise of temperature & CO2 is a ‘spurious correlation’. Warming’s real cause was a solar build-up to a rare Grand Maximum, which man’s industrialisation accompanied by chance. So IPCC demonising CO2 as a ‘pollutant’ is a colossal blunder, costing trillions of dollars in needless & ineffectual efforts to reduce it.
25) Global cooling now in progress since February 2016 can be predicted to last at least 28 years (i.e. to 2044), matching the sun’s 28-year decline from 1991 to today, and allowing for the 25-year time-lag (Bullet 21).
Inescapable conclusion: IPCC is wrong − the sun, not CO2, drove modern global warming
Courtesy of Dr Roger Higgs, Geoclastica Ltd, Technical Note 2019-11, 6th April 2019, on ResearchGate