Visualized: The Mass of the Entire Solar System
In space, everything feels weightless due to the lack of gravity.
So how do you measure the weight of objects in space? You don’t. When it comes to the cosmos, all that matters is mass.
Today’s interactive data visualization comes from Reddit user Ranger-UK, and is designed by Daniel Caroli. It delves into the different masses which make up our solar system, and how they all compare in size.
A Star Is Born
Perhaps not surprisingly, the Sun eclipses all other nearby objects by mass. At the heart of our solar system, this yellow dwarf’s gravity is what holds it all together.
The Sun actually makes up 99.8% of our entire solar system’s mass — and we’re lucky to be living in the other 0.2%. Responsible for all life on Earth, it’s no wonder that various cultures have worshiped the Sun throughout history, and even dedicated deities to it.
Currently in its middle years — the sun is over four billion years old, and it’s predicted to remain stable for another five billion years. After this, it will overtake the orbits of Mercury and Venus and then shrink back to the size of a white dwarf.
Out Of This World
The gas giants are all more than ten times as massive as Earth, even though they’re mainly made up of hydrogen and helium. They dominate the Solar System’s real estate — once the Sun is taken out of the equation, of course.
In order, here’s how the planets stack up:
|Jupiter||Gas giant||1,898,600 x 10²¹ kg||69,911 ±6 km||1.326g/cm³|
|Saturn||Gas giant||568,460 x 10²¹ kg||58,232 ±6 km (*without rings)||0.687g/cm³|
|Neptune||Gas giant||102,430 x 10²¹ kg||24,622 ±19 km||1.638g/cm³|
|Uranus||Gas giant||86,832 x 10²¹ kg||25,362 ±7 km||1.27g/cm³|
|Earth||Terrestrial planet||5,974 x 10²¹ kg||6.371 ±0.01 km||5.514g/cm³|
|Venus||Terrestrial planet||4,869 x 10²¹ kg||6,051.8 ±1 km (*without gas)||5.243g/cm³|
|Mars||Terrestrial planet||642 x 10²¹ kg||3,389.5 ±0.2 km||3.9335g/cm³|
|Mercury||Terrestrial planet||330 x 10²¹ kg||2,439.7 ±1 km||5.427g/cm³|
Satellites Out of Control
The further away from the Sun you go, the more moons can be found orbiting planets. Earth’s singular moon is the fifth largest of almost 200 natural satellites found in the solar system.
Mars has two moons that don’t make it into the visualization above due to their low masses:
- Phobos: 1.08×10^16 kg
- Deimos: 2.0×10^15 kg
Here’s a breakdown of some other moons out there:
Total named: 53
Biggest moons: Ganymede, Callisto, Io, Europa
These four can be seen easily with some help from binoculars.
Total named: 53
Biggest moons: Titan, Rhea, Iapetus, Dione, and Tethys
Total named: 27
Biggest moons: Titania, Oberon, Ariel, Umbriel
Total named: 14
Biggest moon: Triton, which is as big as the dwarf planet Pluto.
Pluto and some “leftovers” of the solar system lie in the distant region of the doughnut-shaped Kuiper belt, between 30 to 50 astronomical units (AU) away. Beginning at the orbit of Neptune, the belt encompasses some of those objects in the visualization categorized as “other”.
So far, we’ve only managed to set foot on our own moon. NASA’s Opportunity rover helped us explore the Red Planet virtually for over 14 years, while the Curiosity is still going strong.
Who knows what else lurks beyond the edges of our solar system?
It suddenly struck me that that tiny pea, pretty and blue, was the Earth… I didn’t feel like a giant. I felt very, very small.
— Neil Armstrong, looking back at the Earth from the Moon (July 1969)
Visualizing the Decline of Confidence in American Institutions
Americans rely on several institutions for their services and safety—but how has their confidence in institutions changed since 1975?
Every day, the public relies on a number of major institutions for services and safety. From banks and governments, to media and the military—these institutions play an important role in shaping life as we know it.
Yet, today’s interactive data visualization from Overflow Data shows that America’s confidence in institutions has drastically waned. The data relies on the General Social Survey (GSS) to provide a 40-year overview of how sentiment has changed with respect to 13 different institutions.
Select an institution from the drop-down menu below to see how confidence has changed over time
The Erosion of Confidence
Overall, confidence in most institutions has eroded. Americans find it especially hard to trust their government: the “great deal of confidence” metrics for Congress, the Supreme Court, and the Executive Branch were low to begin with, and have declined further since 1975.
That said, the biggest overall drop belongs to the press, which saw 50% of surveyed Americans saying they have “hardly any confidence” in it in 2016. This is nearly a three-fold increase from 1975, when that number was just 19%. Of course, with the rise of fake news in more recent years, the erosion of confidence in media doesn’t seem to be slowing down.
Here’s a look at the two extremes of sentiment regarding the studied institutions, showing how the opposite measures of “hardly any confidence” and a “great deal of confidence” have changed since 1975:
|🏦 Banks & Financial Institutions||Hardly any||10.9%||31.2%||+20.3 p.p.|
|Great deal||32.3%||14.1%||-18.2 p.p.|
|🗳️ Congress||Hardly any||26.2%||52.6%||+26.4 p.p.|
|Great deal||13.6%||5.9%||-7.7 p.p.|
|🏫 Education||Hardly any||13.0%||17.5%||+4.5 p.p.|
|Great deal||31.5%||25.6%||-5.9 p.p.|
|🏛️ Executive Branch||Hardly any||29.7%||42.4%||+12.7 p.p.|
|Great deal||13.4%||12.8%||-0.6 p.p.|
|🏬 Major Companies||Hardly any||22.9%||17.3%||-5.6 p.p.|
|Great deal||20.5%||18.3%||-2.2 p.p.|
|🏥 Medicine||Hardly any||17.8%||13.4%||-4.4 p.p.|
|Great deal||51.8%||50.6%||-1.2 p.p.|
|🎖️ Military||Hardly any||14.8%||7.6%||-7.2 p.p.|
|Great deal||36.3%||53.4%||+17.1 p.p.|
|💪 Organized Labor||Hardly any||31.5%||22.6%||-8.9 p.p.|
|Great deal||10.2%||13.9%||+3.7 p.p.|
|🙏 Religion||Hardly any||23.0%||26.4%||+3.4 p.p.|
|Great deal||25.8%||20.0%||-5.8 p.p.|
|📰 Press||Hardly any||19.0%||50.0%||+31 p.p.|
|Great deal||24.5%||7.6%||-16.9 p.p.|
|🥼 Scientific Community||Hardly any||7.4%||6.1%||-1.3 p.p.|
|Great deal||41.7%||42.1%||+0.4 p.p.|
|📺 Television||Hardly any||23.4%||43.1%||+19.7 p.p.|
|Great deal||18.4%||9.8%||-8.6 p.p.|
|⚖️ U.S. Supreme Court||Hardly any||19.2%||17.4%||-1.8 p.p.|
|Great deal||31.8%||26.3%||-5.5 p.p.|
Banks and financial institutions have also suffered a bad rep in the public eye. Their “great deal of confidence” metric has dropped sharply from 32.3% to 14.1% in four decades.
One major exception is the military, which emerges as the most trusted institution. Americans’ faith in the military has also shown the most improvement, with a 17.1 p.p increase in a “great deal of confidence” since 1975.
The Split Widens Further
While measuring public confidence in institutions can be subjective, it provides an understanding of where Americans want to see change and reform take place.
For more on how Americans perceive different institutions and the issues that affect them, see how the public is divided based on political affiliation.
All the S&P 500 Women CEOs in One Timeline (2000-2019)
Since the turn of the century, only a meager 5.6% of S&P 500-indexed companies have been led by women. Today’s interactive timeline highlights their tenures.
All the S&P 500 Women CEOs in One Timeline (2000-2019)
Gender equality has made significant strides since the days of Rosie the Riveter. The iconic wartime image continues to symbolize womens’ empowerment in the present—especially in politics and the workforce.
Yet, the higher and further women get in their careers, it’s clear that barriers still remain. Today’s interactive timeline comes to us from Alex Architektonidis of BoardEx, and it tracks all the women chief executive officers (CEOs) of companies listed in the S&P 500 index since the turn of the century.
The kicker? Across the 500 large-cap companies in the index, only 70 women have ever held the position of CEO or similar titles—and only 28 women currently have this status.
Which Industries Have the Most Women CEOs?
The S&P 500 covers approximately 80% of the U.S. equity market by capitalization. Since the index is fluid and regularly updated, women CEOs were selected based on whether their company was listed in the index during their tenure.
Out of all the sectors represented on the timeline, the top categories are retail with 14 women CEOs, engineering and tech with 10 women CEOs, and finance with 9 women CEOs. Food & beverage and utilities are tied with 7 women CEOs each.
Women Leading in the Corporate World
Topping the list is Marion Osher Sandler, the first and longest-serving woman CEO in the United States. She held the title for nearly 27 years at Golden West Financial Corp (from 1980 to 2006), a company she co-founded and grew to $125 billion in assets.
The next person in line for the longest female-led CEO term is Debra A Cafaro, from the healthcare-focused real estate investment trust Ventas Inc. Cafaro has been CEO of Ventas for 20 years, and generated a cumulative total return of 2,559% since 1999—the S&P average for returns over the same time period was only 215%.
Only two women CEOs show up more than twice on the timeline. The first is Meg Cushing Whitman, who served as President/CEO of Ebay from 1998–2008, Chairman/President/CEO of HP Inc. from 2011–2015, and finally as the CEO of Hewlett Packard from 2015 to 2018. In total, Whitman has spent over 16 years as CEO of these S&P 500 companies.
However, Carol Ann Bartz also has an impressive CV, with nearly 17 years as a CEO under her belt. Bartz was the Chairman/President/CEO of the software corporation Autodesk from 1992–2006, and later on at Yahoo from 2009 to 2011.
The most recent addition to this list is Julie Spellman Sweet, who became the CEO of Accenture on September 1st. She was previously the CEO of Accenture’s North American division, and has been crowned on Fortune’s “Most Powerful Women” list from 2016–2018 consecutively. Sweet’s appointment aligns well with Accenture’s corporate diversity targets—the company is aiming for 25% women in managing director roles globally by 2020.
There’s More Work To Be Done
There’s a growing body of evidence that corporate diversity improves a company’s financial bottom line. A recent CNBC analysis shows that in 2019, over half of female CEOs led their company’s stocks to outperform the S&P 500 index, with some even showing quadruple-digit percentage returns (as previously mentioned with Ventas).
Despite womens’ contributions to nearly half the labor force and consistent success as CEOs, they are disproportionately represented higher up the ladder. Women CEOs still lead a meager 5.6% of S&P 500 companies overall—in fact, women CEO appointments are actually slowing down, averaging less than 6% since 2015.
Such stunted growth is setting back equality at the C-suite level drastically. A joint report between the non-profit Lean In and the consulting firm McKinsey & Co. offers some insight into the reasons underlying this disparity:
Since 2015… corporate America has made almost no progress in improving women’s representation. From the outset, fewer women than men are hired at the entry level. And at every subsequent step, the representation of women further declines.
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