NASA launches InSight lander toward Mars

In a first for the West Coast, an Atlas 5 rocket boosted a robotic Mars lander into space Saturday, the first step in a 171-day voyage to the red planet for a two-year, $1 billion mission to monitor marsquakes, probe the temperature of the core and map the planet’s hidden interior.

With heavy fog blanketing Vandenberg Air Force Base northwest of Los Angeles, the United Launch Alliance Atlas 5′s first stage engine thundered to life at 4:05 a.m. PT (GMT-7; 7:05 a.m. ET), throttled up to full thrust and quickly pushed the 20-story-tall booster away from pad 3-East atop 860,000 pounds of thrust.

It was the first interplanetary launch from the West Coast, but fog blocked the view for spectators near the launch site as the rocket climbed away to the south over the Pacific Ocean. Long-range cameras, however, captured spectacular views as the rocket streaked away, trailing a brilliant plume of fiery exhaust.

The Atlas 5 did its job despite the fog — a visibility guideline was waived by mission managers with all other systems “go” for flight — and 13 minutes after liftoff, the rocket’s Centaur second stage completed the first of two firings to put NASA’s InSight Mars lander in a temporary parking orbit.

A second burn a little more than an hour later was planned to boost the spacecraft out of Earth’s gravitational clutches, putting InSight onto a trajectory to Mars. If all goes well, the lander will touch down on a broad plain known as Elysium Palitia around 2 p.m. local time on Nov. 26.

InSight is the eighth lander NASA has sent to Mars. Since 1964, the United States has now launched 23 robotic spacecraft to the red planet at a cost of more than $20 billion in an evolving campaign to map out the red planet’s surface, determine the role of water in its history and to search for signs of past habitability and the organic building blocks of life.

InSight is the first mission dedicated solely to learning more about the planet’s interior in an attempt to glean clues about how rocky terrestrial planets like Earth formed during the birth of the solar system 4.5 billion years ago.

“The goal of InSight is nothing less than to better understand the birth of the Earth, the birth of the planet we live on, and we’re going to do that by going to Mars,” said Bruce Banerdt, principal investigator of the Interior Exploration using Seismic Investigations, Geodesy and Heat Transport — InSight — mission.

“How we get from a ball of featureless rock into a planet that may or may not support life is a key question,” he said.

Earth is a very geologically active world, and much of the early record has been destroyed by continental drift and the churning of the mantle. As a result, “we’re kind of at a loss to see, on the Earth, what’s the evidence for what happened in those early years,” Banerdt said.

“But we can go to Mars. Mars is a smaller planet, it is less active than the Earth, and so it has retained the fingerprints of those early processes in its basic structure — the thickness of the crust, the composition of the mantle, the size and composition of its core.

“And by mapping out these boundaries, these various different sections of the inside of the planet, we can then understand better how the planet formed and how our planet got to be the way it is.”

InSight is equipped with two primary instruments: the Seismic Experiment Interior Structure — SEIS — seismometer, provided by the French space agency, CNES, and the Heat Flow and Physical Properties Probe — HP3 — provided by the German Aerospace Agency, DLR. The two instruments cost the European space agencies about $180 million.

After a detailed photo survey of the surrounding terrain near the lander and repeated rehearsals on Earth, a robot arm on InSight’s upper deck will be commanded to pick up both instruments and lower them to the surface.

The seismometer “is really the heart of the InSight mission,” Banerdt said. “The seismometer is what allows us to see deep into the planet, to have insight into the planet, and it uses the seismic waves that are generated by marsquakes.”

The instrument, protected by the elements by a down-shaped shield, is capable of measuring movements smaller than the width of a hydrogen atom. As seismic waves from marsquakes travel through the martian interior, they will pass through different types of rock and soil that will alter their shape.

“Scientists understand how to take the shapes of those wiggles, their frequency, their amplitude, the polarization, the timing, all kinds of properties of those waves and pull that information out and finally, after we’ve gotten many, many marsquakes from different directions, we can put together a three-dimensional view of the inside of Mars,” Banerdt said.

The heat probe will use a motor and spring-driven hammer mechanism to pound its way down into the martian soil trailing a cable with sensitive temperature sensors. Pausing along the way to measure the thermal conductivity of the soil at different points, the probe could reach a maximum depth of about 15 feet.

The sensors on the trailing cable will measure slight differences in temperature between the surface and the probe’s maximum depth, allowing scientists to extrapolate temperatures all the way to the core 2,000 miles below.

InSight’s third investigation relies on the lander’s radio system. By carefully analyzing slight changes in the radio signals from the spacecraft as Mars rotates on its axis and sweeps along its orbit, scientists can precisely locate the martian polar axis and measure how it slowly changes orientation.

“Over the course of a year, we can watch that north pole wobble just a little bit because of the core sloshing around inside the planet,” Banerdt said. “And that will give us a very, very tight constraint on the size of that core, its density and so its composition.”

“That tells us the structure of Mars, the structure of Mars tells us something about the processes that put that structure together, we can put that into our models, extrapolate to the Earth and understand how the Earth formed four and a half billion years ago. And that’s really the crux of the science behind this mission.”

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In Hawaii, Kilauea Volcano Erupts, Spewing Lava and Gases Near Homes

There are approximately 1,500 homes in the area, the spokesman said. The Red Cross reported 66 people in two shelters overnight, he added.

“I never thought I’d ever be faced with this, I’m just shellshocked,” said Carl Yoshimoto, 69. He was sheltering at Pahoa Community Center with his two dogs, Sako and Suki, and his partner since Thursday afternoon. Their house is in Leilani Estates.

“As soon as I heard the order to evacuate, I grabbed important paperwork, medications, my wallet — we were out of the house within a half an hour.”

Maddy Welch, 19, who works at Kalapana Bike rentals and lives in Leilani Estates with her mother, had set up a tent and a space at Pahoa Community Center with her two dogs, a goose and her friend, Taylor. “I woke up around 1:30 in the morning to earthquakes,” she said. “My mom didn’t want to leave. I told her there are two vehicles leaving this driveway — I hope you’ll be in one of them because we can’t come back.”

“There’s a lot of uncertainty,” she went on. “I don’t know what’s going on.”

On Thursday evening lava spilled from the crack in the volcano for about an hour and a half, leaving a large smear in a residential area of bushes and trees. Photos and drone footage showed a line of glowing orange slicing through green yards and white vapor and fumes rising above the trees. Gov. David Ige issued an emergency proclamation that made state funding faster to access, and he called up the National Guard to help emergency workers with evacuation efforts.

Kilauea is the youngest of five volcanoes that make up the island of Hawaii, and lies on the island’s south. Dr. Mandeville said the signal that there might be more activity was the little earthquakes, which happen when magma moves against rock, in this case, two miles under the earth’s surface. “That’s where the plumbing system is,” he said.

It remained to be seen how much damage the structures in the evacuation areas have sustained from the eruptions and the earthquakes.

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Dan Jacobs, 47, who has spent the last six months building his house in Leilani Estates, was standing behind Pahoa Village Museum, a downtown hangout. “I invested all my money here, and I probably won’t have anything to show for it in about a month’s time,” he said. “You should see the floors I built, they’re so beautiful, it’s about halfway done.”

Past volcanic eruptions, some that occurred decades ago, have caused lasting damage to parts of the region.

An eruption from the Pu’u ’O’o cone of Kilauea in 1983 has continued to flow, destroying houses in the Royal Gardens subdivision. In 1990 more than 100 homes in the Kalapana community were destroyed by lava flow.

An eruption from Kilauea in 2014 flowed down the surface of the volcano and burned a house in Pahoa. Now residents worry that more structures could be threatened in the area, which is one of the fastest-growing in the state.

“Living on a volcano, everybody has got pretty thick skin. They know the risk,” said Ryan Finlay, who lives in Pahoa and runs an online trade school. “Lava for the most part has flown to the ocean the last 30 years. Everybody gets in a comfort zone. The last couple weeks, everything changed.”

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