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New rocky planet with thick atmosphere, detected

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A thick atmosphere has been detected around a planet that’s twice as big as Earth in a nearby solar system, researchers reported Wednesday.
The so-called super Earth — known as 55 Cancri e — is among the few rocky planets outside our solar system with a significant atmosphere, wrapped a blanket of carbon dioxide and carbon monoxide. The exact amounts are unclear. Earth’s atmosphere is a blend of nitrogen, oxygen, argon and other gases.

“It’s probably the firmest evidence yet that this planet has an atmosphere,” said Ian Crossfield, an astronomer at the University of Kansas who studies exoplanets and was not involved with the research.

The research was published in the journal Nature.

Super Earth refers to a planet’s size — bigger than Earth but smaller than Neptune. The boiling temperatures on this planet — which can reach as hot as 4,200 degrees Fahrenheit (2,300 degrees Celsius) – mean that it is unlikely to host life.

Instead, scientists say the discovery is a promising sign that other such rocky planets with thick atmospheres could exist that may be more hospitable.

The exoplanet 41 light years away is eight times heavier than Earth and circles its star Copernicus so closely that it has permanent day and night sides. A light-year is nearly 6 trillion miles (9.7 trillion kilometers). Its surface is encrusted with magma oceans.

To identify the makeup of its atmosphere, researchers studied Webb Space Telescope observations before and after the planet passed behind its star.

They separated the light emitted from the planet versus its star and used the data to calculate the planet’s temperature. There’s evidence the planet’s heat was being distributed more evenly across its surface – a party trick atmospheres are known for.

Gases from its magma oceans may play a key role in holding its atmosphere steady. Exploring this super Earth may also yield clues to how Earth and Mars might have evolved first with magma oceans that have since cooled, scientists say.

“It’s a rare window,” said Renyu Hu, a planetary scientist at NASA’s Jet Propulsion Laboratory, who was part of the research. “We can look into this early phase of planet evolution.”

(The Washington Post)

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Israel agrees to ceasefire proposal

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The Israeli government has said it agreed to the ceasefire proposal after “achieving the objectives” of its attacks on Iran.
According to the statement, Israel has removed Iran’s “dual immediate existential threat” from nuclear weapons and ballistic missiles.

It also says Israel has “inflicted severe damage on the military leadership, and destroyed dozens of central Iranian government targets”.

The statement goes on to say that Israeli forces, in the last day, have “severely struck government targets in the heart of Tehran, eliminating hundreds of Basij operatives” – a militia the Iranian government often uses to suppress protests – and “eliminating another senior nuclear scientist”.

“Israel thanks President Trump and the United States for their support in defence and their participation in eliminating the Iranian nuclear threat,” the statement adds.

Earlier, Iran state TV news channel IRINN says a ceasefire has been “imposed” on Israel following the “successful” Iranian attack on the US base in Qatar.

State TV said in a statement that Trump “begged” for a ceasefire following Iran’s attack. The statement was read aloud by the presenter.

The statement also hailed Iran’s Islamic Revolutionary Guard Corps (IRGC) and the Army and praised the “resistance” of Iranians.

The statement also called Iran’s attack on the US base in Qatar as the Islamic Revolutionary Guard Corps’ “successful” response to the US attacking three Iranian nuclear sites, while Qatar said all missiles were intercepted.

(Excerpts : BBC News)

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Trump says Iran – Israel have agreed to a ceasefire

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US President Donald Trump has announced a “complete and total” ceasefire between Israel and Iran on social media.

Trump says the ceasefire will begin “in approximately six hours from now” after each country has “wound down” their military operations.

Trump’s announcement contains a periodic unravelling of hostilities but says that “upon the 24th hour” the war will officially end.

Meanwhile, Iran’s foreign minister, Seyed Abbas Araghchi, has posted on X saying there is “no agreement of any ceasefire or cessation of military operations.”

“”As Iran has repeatedly made clear: Israel launched war on Iran, not the other way around…However, provided that the Israeli regime stops its illegal aggression against the Iranian people no later than 4 am Tehran time, we have no intention to continue our response afterwards,: he has added.

“The final decision on the cessation of our military operations will be made later,” he has further said.

Meanwhile, Reuters have reported citing a senior White House official as saying that President Donald Trump brokered a ceasefire between Israel and Iran through talks with Israeli Prime Minister Benjamin Netanyahu on Monday while his team, including Vice President JD Vance, held talks with Tehran.

The official, providing details of the ceasefire on condition of anonymity, has said Israel agreed to it so long as Iran does not launch fresh attacks.

(Agencies)

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Qatar, Kuwait, Bahrain close airspaces

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Iran has launched missiles at a US airbase in Qatar in response to strikes on its nuclear sites on Saturday.

Qatar confirms the attack on the US-run Al Udeid base, calling it a “flagrant violation” and says it reserves the right to respond directly.

The country has temporarily closed its airspace and US and UK citizens have been advised to shelter in place.

Meanwhile, Kuwait and Bahrain have also closed their respective airspaces.

(Agencies)

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