Query
Find articles
Pick a keyword, optionally a second one to combine it with (and, or, either but not both, or but not), then narrow the articles down by text, source and time range. Keywords update the results right away; filters apply with their button.
Query
How they overlap
Of the articles on each keyword in the last 7 days, with the same text and sources, how many also mention the other. Per lean: the share of its outlets' articles on Kseniia Petrova that mention Russia.
75.0% of the 4 articles on Kseniia Petrova also mention Russia, as do 1.9% of the 155 articles on Russia.
- Left-leaning3 of 4 articles
- 75.0%
- Least biasedno article on Kseniia Petrova
- –
- Right-leaningno article on Kseniia Petrova
- –
Who picked it up when
NBC News mentioned it first (Nov 4, 2026, 12:48 PM EST). No least biased outlet mentioned it. No right-leaning outlet mentioned it.
One row per source with a matching article, from the most left-leaning on top: a dot for each article, on a bar for each stretch of its coverage (a pause of more than 24 hours starts a new one). Hover or tap a dot for the headline, click it to read the article.
Source lean:leftcenterright
Source leans by Media Bias/Fact Check.
Results
3 articles mention Kseniia Petrova and Russia in the last 7 days (Oct 30 to Nov 5).
| Article | |||
|---|---|---|---|
| ABC News | DOJ drops charges against Russian researcher accused of smuggling frog embryosABC News A judge has granted a request from prosecutors to drop the criminal case against Kseniia Petrova, the Russian researcher accused of smuggling frog embryos into the U.S. | 0.60 | |
| The Guardian | US prosecutors drop criminal charges against scientist detained over frog embryosThe Guardian Kseniia Petrova was detained for four months after arrest with research samples, and feared deportation to Russia Federal prosecutors have dropped all criminal charges against a Russian scientist who spent four months in immigration detention after flying into Boston with frog embryos intended for cancer research at Harvard Medical School. Kseniia Petrova, 31, was arrested in March 2025 after returning from a vacation in France, where she had visited a laboratory specializing in cutting extremely thin sections of frog embryos. During her visit, she obtained a package of samples for her research back in the US. Continue reading... | 0.60 | |
| NBC News | Federal judge drops charges against Harvard scientist accused of smuggling frog embryosNBC News A federal judge dismissed criminal charges against Kseniia Petrova, the Russian-born Harvard scientist accused of smuggling frog embryos into the United States. | 0.60 |
Source leans by Media Bias/Fact Check.
Narrow further
Other keywords in the matching articles: the share of them that mention each, with the number of articles. The search icon searches for Kseniia Petrova and that keyword instead of Russia, keeping the text, sources, source type and time range.
Coverage by source
The share of each source's stories in the last 7 days that match the query, from left to right. Sort the table to reorder the bars.
Source lean:leftcenterright
Source leans by Media Bias/Fact Check.
| NBC News | 0.5% | 1 | 218 |
| The Guardian | 0.2% | 1 | 616 |
| ABC News | 0.8% | 1 | 122 |
Coverage by lean
The share of stories that match the query, in the last 7 days, averaged over the outlets of each political lean with at least 3 stories. The groups differ in size, so a single outlet weighs more in the smaller ones.
- Left-leaning3 of 15 sources
- 0.1%
- Least biased0 of 8 sources
- 0.0%
- Right-leaning0 of 14 sources
- 0.0%
Lean index −3.4: covered more by left-leaning outlets
Each outlet at its MBFC bias score, from −10 (far left) to +10 (far right), as high as the share of its stories that match the query. The lean index is the average score of the outlets covering it, weighted by that share.
lean indexour sources' average (+0.4)leftcenterright
Bias scores by Media Bias/Fact Check.
Source leans based on ratings by Media Bias/Fact Check.