The Kepler Space Telescope Has Shown Us Our Galaxy Is Teeming With Planets — And Other Surprises

The Kepler space telescope has shown us our galaxy is teeming with planets — and other surprises

The Kepler space telescope has taught us there are so many planets out there, they outnumber even the stars. Here is a sample of these wondrous, weird and unexpected worlds (and other spectacular objects in space) that Kepler has spotted with its “eye” opened to the heavens.

Kepler has found that double sunsets really do exist.

Yes, Star Wars fans, the double sunset on Tatooine could really exist. Kepler discovered the first known planet around a double-star system, though Kepler-16b is probably a gas giant without a solid surface.

Kepler has gotten us closer to finding planets like Earth.

Nope. Kepler hasn’t found Earth 2.0, and that wasn’t the job it set out to do. But in its survey of hundreds of thousands of stars, Kepler found planets near in size to Earth orbiting at a distance where liquid water could pool on the surface. One of them, Kepler-62f, is about 40 percent bigger than Earth and is likely rocky. Is there life on any of them? We still have a lot more to learn.

This sizzling world is so hot iron would melt!

One of Kepler’s early discoveries was the small, scorched world of Kepler-10b. With a year that lasts less than an Earth day and density high enough to imply it’s probably made of iron and rock, this “lava world” gave us the first solid evidence of a rocky planet outside our solar system.

If it’s not an alien megastructure, what is this oddly fluctuating star?

When Kepler detected the oddly fluctuating light from “Tabby’s Star,” the internet lit up with speculation of an alien megastructure. Astronomers have concluded it’s probably an orbiting dust cloud.

Kepler caught this dead star cannibalizing its planet.

What happens when a solar system dies? Kepler discovered a white dwarf, the compact corpse of a star in the process of vaporizing a planet.

These Kepler planets are more than twice the age of our Sun!

The five small planets in Kepler-444 were born 11 billion years ago when our galaxy was in its youth. Imagine what these ancient planets look like after all that time?

Kepler found a supernova exploding at breakneck speed.

This premier planet hunter has also been watching stars explode. Kepler recorded a sped-up version of a supernova called a “fast-evolving luminescent transit” that reached its peak brightness at breakneck speed. It was caused by a star spewing out a dense shell of gas that lit up when hit with the shockwave from the blast.

* All images are artist illustrations.

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akshayk

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akshayk

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5 Ways Studying Water Will Help Us Better Understand Earth

Studying our home planet is just as powerful as exploring what’s beyond it.

Surface Water and Ocean Topography (SWOT) is a joint mission developed by NASA and the French space agency Centre National d’Études Spatiales (CNES), with contributions from the Canadian Space Agency and the UK Space Agency. It will track water on more than 90% of Earth’s surface and help communities, scientists, and researchers better understand this finite and vital resource. And it’s launching this month!

So how will SWOT help us better understand Earth? Here are 5 ways.

This is a GIF of SWOT in space as it passes over Earth and simulates the satellite becoming operational. The SWOT satellite deploys components that were stored for the launch, including extending its solar panels and deploys its booms and antennas.

SWOT will address some of the most pressing climate change questions of our time.

An important part of predicting our future climate is determining at what point Earth’s ocean water slows down its absorption of the excess heat in the atmosphere and starts releasing that heat back into the air, where it could accelerate global warming. SWOT will provide crucial information about this global heat exchange between the ocean and the atmosphere, enabling researchers to test and improve future climate forecasts.

The satellite will also offer insights to improve computer models for sea level rise projections and coastal flood forecasting.

Data from SWOT will additionally help scientists, engineers, water managers, and others better monitor drought conditions in lakes and reservoirs and improve flood forecasts for rivers.

This GIF is a short timelapse of a tree in the middle of a wetland type environment. As the timelapse begins water slowly starts to increase and by the end of the timelapse, the area around the tree is completely flooded.

SWOT is the first satellite mission that will observe nearly all water on the planet’s surface.

SWOT will measure the height of water in Earth’s lakes, rivers, reservoirs, and the ocean, giving scientists the ability to track the movement of water around the world.

SWOT’s eye in the sky will provide a truly global view of the water on more than 90% of Earth’s surface, enriching humankind’s understanding of how the ocean reacts to and influences climate change along with what potential hazards – including floods – lie ahead in different regions of the world.

This GIF was created from video footage of Alaska water ways and roads. It is a collection of scenes throughout Alaska including a large waterway next to road, a car traveling over a bridge, as well as various large rivers and creeks.

SWOT will see Earth’s water in higher definition than ever before.

Because everything is better in HD 😉, SWOT will view Earth’s ocean and freshwater bodies with unprecedented clarity compared to other satellites, much like a high-definition television delivers a picture far more detailed than older models. This means that SWOT will be able to “see” ocean features – like fronts and eddies – that are too small for current space-based instruments to detect. Those measurements will help improve researchers’ understanding of the ocean’s role in climate change.

Not only will the satellite show where – and how fast – sea level is rising, it will also reveal how coastlines around the world are changing. It will provide similar high-definition clarity for Earth’s lakes, rivers, and reservoirs, many of which remain a mystery to researchers, who aren’t able to outfit every water body with monitoring instruments.

Animation of SWOT as it flies over Florida and conducts its measurements of the water below. SWOT will collect data across a 75-mile (120-kilometer) wide swath, with a gap in the center for an altimetry track. This is an animation that shows the collection of data over the state of Florida, which is rich with rivers, lakes, and wetlands. Green and pink lights move downwards from the satellite to Earth, mimicking the satellite collecting data over the ocean and freshwater areas.

SWOT data will be used to help make decisions about our daily lives and livelihoods.

As climate change accelerates the water cycle, more communities around the world will be inundated with water while others won’t have enough. SWOT data will be used to monitor drought conditions and improve flood forecasts, providing essential information to water management agencies, disaster preparedness agencies, universities, civil engineers, and others who need to track water in their local areas. SWOT data also will help industries, like shipping, by providing measurements of water levels along rivers, as well as ocean conditions, including tides, currents, and storm surges.

This GIF shows catastrophic flooding in various communities throughout the world. The first scene includes several houses with water up to the roofs, almost covering the entire neighborhood. The next scene shows a road that is no longer accessible due to water flooding and covering entire segments of the road.

Finally … SWOT will pave the way for future Earth missions.

With its innovative technology and commitment to engaging a diverse community of people who plan to use data from the mission, SWOT is blazing a trail for future Earth-observing missions. SWOT’s data and the tools to support researchers in analyzing the information will be free and accessible. This will help to foster research and applications activities by a wide range of users, including scientists, resource managers, and others who in the past may not have had the opportunity to access this kind of information. Lessons learned from SWOT will lead to new questions and improvements for future missions, including our upcoming Earth System Observatory, a constellation of missions focused on studying key aspects of our home planet.